Below is a guest post on anatomical modernist Fritz Kahn and "Physiological Ads for the Modern Self" by our good friend Michael Sappol, author of A Traffic of Dead Bodies , curator of Dream Anatomy , and historian at the National Library of Medicine . It was originally posted on their wonderful Circulating Now blog. Fritz Kahn (1888–1968), a German-Jewish physician-author, was the first great exponent of the conceptual medical illustration—illustrations that go beyond the representation of human anatomy to visually explain processes that occur within the human body. His published works, aimed at a mass readership, contain thousands of imaginative images, produced by a cadre of talented commercial artists. In Kahn’s Das Leben des Menschen (5 vols., 1922–31), many of the illustrations copy the look of contemporary advertisement, with display type, subheadings, physically attractive models, etc. But they are not intended to sell a product: instead the human body, its structu...