"How long do animals live?" by ISOTYPE – the International System Of TYpographic Picture Education, Otto Neurath, 1939, Field Museum of Natural History. Isotype : du grec « égale, forme », caractéristique retrouvée chez tous les individus d'une même espèce.
One of a series of library education posters designed by Peabody Visual Aids in the 1930s and 1940s, which I salvaged from a throw-away pile at my library school in 2003. These were created under the supervision of visionary librarian Ruby Ethel Cundiff.