{"id":11371,"date":"2026-10-08T10:10:42","date_gmt":"2026-10-08T08:10:42","guid":{"rendered":"https:\/\/igpp.de\/?p=11371"},"modified":"2026-10-08T10:10:42","modified_gmt":"2026-10-08T08:10:42","slug":"secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today","status":"publish","type":"post","link":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/","title":{"rendered":"Secret Maps: Maps You Were Never Meant to See, from the Middle Ages to Today"},"content":{"rendered":"[vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text]\u00bb<span class=\"a-text-bold\">An illustrated story of the relationship between mapping and secrecy, charting the role maps played in concealing and revealing knowledge across centuries.<\/span><\/p>\n<p>Is there anything more intriguing than a secret map? One that reveals clandestine information or meanings, or a map that is <span class=\"a-text-italic\">itself <\/span>a secret? <span class=\"a-text-italic\">Secret Maps<\/span> features over one hundred examples of these kinds of maps, connected by their varied relationships to secrecy, and ranging from the twelfth to the twenty-first centuries and across the globe. They include views into state secrecy and power\u2014such as maps used for domestic and military purposes, imperial expansion, espionage, and surveillance as well as those with private or commercial uses, such as charts of private land, trade routes, or the flights of private jets. The maps span widely in their scope and cover issues of broad interest, from old-fashioned spying to contemporary concerns about technology and privacy.<\/p>\n<p>As illuminating as it is thrilling, <span class=\"a-text-italic\">Secret Maps<\/span> unearths the once-hidden routes, landscapes, and locations that have covertly shaped our world.<span class=\"a-text-bold\">\u00a0<\/span>\u00ab (Verlagsank\u00fcndigung)[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][divider line_type=&#8221;Full Width Line&#8221; line_thickness=&#8221;1&#8243; divider_color=&#8221;extra-color-3&#8243;][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; equal_height=&#8221;yes&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;padding-2-percent&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/3&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221; column_padding_type=&#8221;default&#8221; gradient_type=&#8221;default&#8221;][vc_custom_heading text=&#8221;Autorin&#8221; font_container=&#8221;tag:h6|font_size:16|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;.vc_custom_1786002998891{margin-bottom: 15px !important;}&#8221;][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;horizontal&#8221; column_element_direction_tablet=&#8221;horizontal&#8221; column_element_direction_phone=&#8221;horizontal&#8221; column_element_alignment=&#8221;center&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; el_class=&#8221;icon&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221; column_padding_type=&#8221;default&#8221; gradient_type=&#8221;default&#8221;][image_with_animation image_url=&#8221;1289&#8243; image_size=&#8221;full&#8221; animation_type=&#8221;entrance&#8221; animation=&#8221;None&#8221; animation_movement_type=&#8221;transform_y&#8221; hover_animation=&#8221;none&#8221; alignment=&#8221;&#8221; border_radius=&#8221;none&#8221; box_shadow=&#8221;none&#8221; image_loading=&#8221;default&#8221; max_width=&#8221;100%&#8221; max_width_mobile=&#8221;default&#8221; margin_right=&#8221;15&#8243;][vc_column_text]Tom Harper[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][vc_column column_padding=&#8221;padding-2-percent&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/3&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;advanced&#8221; border_left_desktop=&#8221;1&#8243; border_left_tablet=&#8221;0&#8243; border_top_tablet=&#8221;1&#8243; column_border_color=&#8221;#d6ecee&#8221; column_border_style=&#8221;solid&#8221; column_padding_type=&#8221;default&#8221; gradient_type=&#8221;default&#8221;][vc_custom_heading text=&#8221;Zum Buch&#8221; font_container=&#8221;tag:h6|font_size:16|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;.vc_custom_1703067594298{margin-bottom: 15px !important;}&#8221;][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text]<strong>Herausgeber:<\/strong><span class=\"a-text-bold\"> University of Chicago Press<\/span><br \/>\n<strong>Sprache:<\/strong> \u200e Englisch<br \/>\n<strong>Geb. Ausgabe:<\/strong> \u200e 256 Seiten<br \/>\n<strong>ISBN 10:<\/strong> 0226846164<span class=\"a-list-item\"><br \/>\n<\/span><strong>ISBN 13: <\/strong>978-0226846163<\/p>\n<p>&nbsp;<\/p>\n<div class=\"a-carousel-col a-carousel-center\">\n<div id=\"anonCarousel1\" class=\"a-carousel-viewport\" role=\"group\" aria-roledescription=\"\">\n<div class=\"a-section a-spacing-none a-text-center rpi-learn-more-card-content rpi-card-content-middle\"><\/div>\n<\/div>\n<\/div>\n<div class=\"a-carousel-col a-carousel-right\"><\/div>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][vc_column column_padding=&#8221;padding-2-percent&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/3&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;advanced&#8221; border_left_desktop=&#8221;1&#8243; border_left_tablet=&#8221;0&#8243; border_top_tablet=&#8221;1&#8243; column_border_color=&#8221;#d6ecee&#8221; column_border_style=&#8221;solid&#8221; column_padding_type=&#8221;default&#8221; gradient_type=&#8221;default&#8221;][vc_custom_heading text=&#8221;Verf\u00fcgbarkeit&#8221; font_container=&#8221;tag:h6|font_size:16|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;.vc_custom_1703067586976{margin-bottom: 15px !important;}&#8221;][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221; class=&#8221;icon&#8221;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;horizontal&#8221; column_element_direction_tablet=&#8221;horizontal&#8221; column_element_direction_phone=&#8221;horizontal&#8221; column_element_alignment=&#8221;center&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221; column_padding_type=&#8221;default&#8221; gradient_type=&#8221;default&#8221;][image_with_animation image_url=&#8221;966&#8243; image_size=&#8221;full&#8221; animation_type=&#8221;entrance&#8221; animation=&#8221;None&#8221; animation_movement_type=&#8221;transform_y&#8221; hover_animation=&#8221;none&#8221; alignment=&#8221;&#8221; border_radius=&#8221;none&#8221; box_shadow=&#8221;none&#8221; image_loading=&#8221;default&#8221; max_width=&#8221;100%&#8221; max_width_mobile=&#8221;default&#8221; margin_right=&#8221;15&#8243; margin_bottom=&#8221;0&#8243;][nectar_cta btn_style=&#8221;underline&#8221; heading_tag=&#8221;h6&#8243; button_color=&#8221;default&#8221; button_border_thickness=&#8221;0px&#8221; link_type=&#8221;regular&#8221; alignment=&#8221;left&#8221; alignment_tablet=&#8221;default&#8221; alignment_phone=&#8221;default&#8221; display=&#8221;block&#8221; display_tablet=&#8221;inherit&#8221; display_phone=&#8221;inherit&#8221; icon_family=&#8221;none&#8221; font_size_desktop=&#8221;16&#8243; link_text=&#8221;Institutsbibliothek&#8221; url=&#8221;https:\/\/katalog.ub.uni-freiburg.de\/opac\/RDSIndex\/Search?lookfor=Secret+Maps%3A+Maps+You+Were+Never+Meant+to+See%2C+from+the+Middle+Ages+to+Today&amp;type=AllFields&#8221;][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;horizontal&#8221; column_element_direction_tablet=&#8221;horizontal&#8221; column_element_direction_phone=&#8221;horizontal&#8221; column_element_alignment=&#8221;center&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221; column_padding_type=&#8221;default&#8221; gradient_type=&#8221;default&#8221;][image_with_animation image_url=&#8221;968&#8243; image_size=&#8221;full&#8221; animation_type=&#8221;entrance&#8221; animation=&#8221;None&#8221; animation_movement_type=&#8221;transform_y&#8221; hover_animation=&#8221;none&#8221; alignment=&#8221;&#8221; border_radius=&#8221;none&#8221; box_shadow=&#8221;none&#8221; image_loading=&#8221;default&#8221; max_width=&#8221;100%&#8221; max_width_mobile=&#8221;default&#8221; margin_right=&#8221;15&#8243; margin_bottom=&#8221;0&#8243;][vc_column_text]<strong>Im Handel<\/strong><br \/>\n<a href=\"https:\/\/www.amazon.com\/Secret-Maps-Never-Meant-Middle\/dp\/0226846164\" rel=\"noopener\">Amazon<\/a>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"<p>[vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221;&#8230;<\/p>\n","protected":false},"author":6,"featured_media":11372,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[25],"tags":[],"class_list":["post-11371","post","type-post","status-publish","format-standard","has-post-thumbnail","category-bibliothekserwerb"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Secret Maps: Maps You Were Never Meant to See, from the Middle Ages to Today - IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Secret Maps: Maps You Were Never Meant to See, from the Middle Ages to Today - IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene\" \/>\n<meta property=\"og:description\" content=\"[vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221;...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/\" \/>\n<meta property=\"og:site_name\" content=\"IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-08T08:10:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/igpp.de\/wp-content\/uploads\/2026\/10\/secret-maps.png\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Karin Moos\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@IGPP_Freiburg\" \/>\n<meta name=\"twitter:site\" content=\"@IGPP_Freiburg\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Karin Moos\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/\"},\"author\":{\"name\":\"Karin Moos\",\"@id\":\"https:\/\/igpp.de\/en\/#\/schema\/person\/d8a0a055a0ba4b8b2a0ead04d62740d8\"},\"headline\":\"Secret Maps: Maps You Were Never Meant to See, from the Middle Ages to Today\",\"datePublished\":\"2026-10-08T08:10:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/\"},\"wordCount\":1824,\"publisher\":{\"@id\":\"https:\/\/igpp.de\/en\/#organization\"},\"image\":{\"@id\":\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/igpp.de\/wp-content\/uploads\/2026\/10\/secret-maps.png\",\"articleSection\":[\"Bibliothekserwerb\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/\",\"url\":\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/\",\"name\":\"Secret Maps: Maps You Were Never Meant to See, from the Middle Ages to Today - IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene\",\"isPartOf\":{\"@id\":\"https:\/\/igpp.de\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/igpp.de\/wp-content\/uploads\/2026\/10\/secret-maps.png\",\"datePublished\":\"2026-10-08T08:10:42+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#primaryimage\",\"url\":\"https:\/\/igpp.de\/wp-content\/uploads\/2026\/10\/secret-maps.png\",\"contentUrl\":\"https:\/\/igpp.de\/wp-content\/uploads\/2026\/10\/secret-maps.png\",\"width\":800,\"height\":500},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Startseite\",\"item\":\"https:\/\/igpp.de\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Secret Maps: Maps You Were Never Meant to See, from the Middle Ages to Today\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/igpp.de\/en\/#website\",\"url\":\"https:\/\/igpp.de\/en\/\",\"name\":\"IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene\",\"description\":\"Systematischen und interdisziplin\u00e4ren Erforschung von bisher unzureichend verstandenen Ph\u00e4nomenen und Anomalien an den Grenzen unseres Wissens.\",\"publisher\":{\"@id\":\"https:\/\/igpp.de\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/igpp.de\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/igpp.de\/en\/#organization\",\"name\":\"IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene\",\"url\":\"https:\/\/igpp.de\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/igpp.de\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/igpp.de\/wp-content\/uploads\/2023\/12\/IGPP-Logo-Bild-Wordmarke.svg\",\"contentUrl\":\"https:\/\/igpp.de\/wp-content\/uploads\/2023\/12\/IGPP-Logo-Bild-Wordmarke.svg\",\"width\":132,\"height\":28,\"caption\":\"IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene\"},\"image\":{\"@id\":\"https:\/\/igpp.de\/en\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/x.com\/IGPP_Freiburg\",\"https:\/\/www.youtube.com\/@igppfreiburg2985\",\"https:\/\/bsky.app\/profile\/igpp.bsky.social\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/igpp.de\/en\/#\/schema\/person\/d8a0a055a0ba4b8b2a0ead04d62740d8\",\"name\":\"Karin Moos\",\"url\":\"https:\/\/igpp.de\/en\/author\/moos\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Secret Maps: Maps You Were Never Meant to See, from the Middle Ages to Today - IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/","og_locale":"en_US","og_type":"article","og_title":"Secret Maps: Maps You Were Never Meant to See, from the Middle Ages to Today - IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene","og_description":"[vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221;...","og_url":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/","og_site_name":"IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene","article_published_time":"2026-10-08T08:10:42+00:00","og_image":[{"width":800,"height":500,"url":"https:\/\/igpp.de\/wp-content\/uploads\/2026\/10\/secret-maps.png","type":"image\/png"}],"author":"Karin Moos","twitter_card":"summary_large_image","twitter_creator":"@IGPP_Freiburg","twitter_site":"@IGPP_Freiburg","twitter_misc":{"Written by":"Karin Moos","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#article","isPartOf":{"@id":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/"},"author":{"name":"Karin Moos","@id":"https:\/\/igpp.de\/en\/#\/schema\/person\/d8a0a055a0ba4b8b2a0ead04d62740d8"},"headline":"Secret Maps: Maps You Were Never Meant to See, from the Middle Ages to Today","datePublished":"2026-10-08T08:10:42+00:00","mainEntityOfPage":{"@id":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/"},"wordCount":1824,"publisher":{"@id":"https:\/\/igpp.de\/en\/#organization"},"image":{"@id":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#primaryimage"},"thumbnailUrl":"https:\/\/igpp.de\/wp-content\/uploads\/2026\/10\/secret-maps.png","articleSection":["Bibliothekserwerb"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/","url":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/","name":"Secret Maps: Maps You Were Never Meant to See, from the Middle Ages to Today - IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene","isPartOf":{"@id":"https:\/\/igpp.de\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#primaryimage"},"image":{"@id":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#primaryimage"},"thumbnailUrl":"https:\/\/igpp.de\/wp-content\/uploads\/2026\/10\/secret-maps.png","datePublished":"2026-10-08T08:10:42+00:00","breadcrumb":{"@id":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#primaryimage","url":"https:\/\/igpp.de\/wp-content\/uploads\/2026\/10\/secret-maps.png","contentUrl":"https:\/\/igpp.de\/wp-content\/uploads\/2026\/10\/secret-maps.png","width":800,"height":500},{"@type":"BreadcrumbList","@id":"https:\/\/igpp.de\/en\/secret-maps-maps-you-were-never-meant-to-see-from-the-middle-ages-to-today\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Startseite","item":"https:\/\/igpp.de\/en\/"},{"@type":"ListItem","position":2,"name":"Secret Maps: Maps You Were Never Meant to See, from the Middle Ages to Today"}]},{"@type":"WebSite","@id":"https:\/\/igpp.de\/en\/#website","url":"https:\/\/igpp.de\/en\/","name":"IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene","description":"Systematischen und interdisziplin\u00e4ren Erforschung von bisher unzureichend verstandenen Ph\u00e4nomenen und Anomalien an den Grenzen unseres Wissens.","publisher":{"@id":"https:\/\/igpp.de\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/igpp.de\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/igpp.de\/en\/#organization","name":"IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene","url":"https:\/\/igpp.de\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/igpp.de\/en\/#\/schema\/logo\/image\/","url":"https:\/\/igpp.de\/wp-content\/uploads\/2023\/12\/IGPP-Logo-Bild-Wordmarke.svg","contentUrl":"https:\/\/igpp.de\/wp-content\/uploads\/2023\/12\/IGPP-Logo-Bild-Wordmarke.svg","width":132,"height":28,"caption":"IGPP Institut f\u00fcr Grenzgebiete der Psychologie und Psychohygiene"},"image":{"@id":"https:\/\/igpp.de\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/x.com\/IGPP_Freiburg","https:\/\/www.youtube.com\/@igppfreiburg2985","https:\/\/bsky.app\/profile\/igpp.bsky.social"]},{"@type":"Person","@id":"https:\/\/igpp.de\/en\/#\/schema\/person\/d8a0a055a0ba4b8b2a0ead04d62740d8","name":"Karin Moos","url":"https:\/\/igpp.de\/en\/author\/moos\/"}]}},"_links":{"self":[{"href":"https:\/\/igpp.de\/en\/wp-json\/wp\/v2\/posts\/11371","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/igpp.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/igpp.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/igpp.de\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/igpp.de\/en\/wp-json\/wp\/v2\/comments?post=11371"}],"version-history":[{"count":1,"href":"https:\/\/igpp.de\/en\/wp-json\/wp\/v2\/posts\/11371\/revisions"}],"predecessor-version":[{"id":11374,"href":"https:\/\/igpp.de\/en\/wp-json\/wp\/v2\/posts\/11371\/revisions\/11374"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/igpp.de\/en\/wp-json\/wp\/v2\/media\/11372"}],"wp:attachment":[{"href":"https:\/\/igpp.de\/en\/wp-json\/wp\/v2\/media?parent=11371"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/igpp.de\/en\/wp-json\/wp\/v2\/categories?post=11371"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/igpp.de\/en\/wp-json\/wp\/v2\/tags?post=11371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}