List of illustrations

Fig. 1.	Ancient Egyptian writing—stela of Senusret III, Altes Museum Berlin https://commons.wikimedia.org/wiki/File:Ancient_egyptian_stela_Senusert_III.JPG CC BY-SA 3.0.	Fig. 1.
Fig. 2.	Basic QWERTY keyboard (with the interleaved bars of a traditional typewriter). Diagram: the author.	Fig. 2.
Fig. 3.	Ancient Roman mosaic, featuring a panther—detail from Pompeii, National Archaeological Museum, Naples https://commons.wikimedia.org/wiki/File:MANNapoli_SN_mosaic_Panthere.jpg Public domain.	Fig. 3.
Fig. 4.	Georges Seurat’s Honfleur, un soir, embouchure de la Seine (detail) Museum of Modern Art, New York https://commons.wikimedia.org/wiki/File:Georges-Pierre_Seurat_-_Honfleur,_un_soir,_embouchure_de_la_Seine_-_Google_Art_Project.jpg Public domain.	Fig. 4.
Fig. 5.	A modern Jacquard loom https://commons.wikimedia.org/wiki/File:India_-_Sights_%26_Culture_-_Hand-loom_pattern_cards_for_silk_sari_weaving_(2507306023).jpg CC BY 2.0.	Fig. 5.
Fig. 6.	Sound. Diagram: the author.	Fig. 6.
Fig. 7.	Views of a cube. Diagram: the author.	Fig. 7.
Fig. 8.	World map according to the Mercator projection https://commons.wikimedia.org/w/index.php?curid=20066691 CC BY-SA 3.0.	Fig. 8.
Fig. 9.	World map according to the Peters projection https://commons.wikimedia.org/wiki/File:Peters_projection,_blank.svg Public domain.	Fig. 9.
Fig. 10.	Ancient Egyptian art: Drawings of the gods Nebt-Het, Anubis, and Seb https://commons.wikimedia.org/wiki/File:Nebt-Het._AND_Anubis._AND_Seb,_or_Keb._(1902)_-_TIMEA.jpg From Travelers in the Middle East Archive. CC BY 2.5.	Fig. 10.
Fig. 11.	Drawing of an ancient Greek vase painting. https://commons.wikimedia.org/wiki/File:EB1911_Greek_Art_-_Vase_Drawing_(Fig._2).jpg Encyclopdia Britannica (11th ed.), v. 12, 1911, p. 474—Public domain.	Fig. 11.
Fig. 12.	A banquet—detail from the Bayeux Tapestry https://commons.wikimedia.org/wiki/File:Bayeuxtapeten,_Nordisk_familjebok.png Nordisk familjebok—Public domain.	Fig. 12.
Fig. 13.	Hokusai—Chushingura, Act XI, Scene 2 https://commons.wikimedia.org/wiki/File:HokusaiChushingura.jpg Public domain.	Fig. 13.
Fig. 14.	Juan Gris—Portrait of Pablo Picasso https://commons.wikimedia.org/wiki/File:Juan_Gris_-_Portrait_of_Pablo_Picasso_-_Google_Art_Project.jpg Public domain.	Fig. 14.
Fig. 15.	Perspective drawing—From Albrecht Dürer’s Institutiones Geometricae (1532) http://www.cbi.umn.edu/hostedpublications/Tomash/ Courtesy of the Erwin Tomash Library.	Fig. 15.
Fig. 16.	Slide rule. Diagram: the author.	Fig. 16.
Fig. 17.	Hollerith tabulator, From Scientific American, 1890. http://www.cbi.umn.edu/hostedpublications/Tomash/ Courtesy of the Erwin Tomash Library.	Fig. 17.
Fig. 18.	Vigenère square. Diagram: the author.	Fig. 18.
Fig. 19.	Enigma machine https://commons.wikimedia.org/wiki/File:Enigma_Machine_A16672_open,_letter_L_pressed.agr.jpg CC BY-SA 4.0.	Fig. 19.