Paul Klee / Douglas CooperHardmondsworth: Penguin, 1949 (Penguin modern painters)

“The Penguin editor's most ambitious developments was the unveiling of the new Penguin Modern Painters series. Each book provided reproductions of an artist's work and familiarized readers with the painting of contemporary artists. Some of the titles in the series from 1947-1949 included Edward Bawden by J.M. Richards, Ben Nicholson by John Summerson, and Paul Klee by Douglas Cooper, all of which were recognized by the National Book League as some of the best designed books of their respective years, due, no doubt, to the graphic design efforts of Tschichold (...) Tschichold retained the size 8 5/8'' x 6 7/8'' (220 mm x 175 mm) landscape format and applied a classical serif typeface throughout each Modern Painters series. The cover, title, and copyright pages were methodically designed as the typography was placed in the center of each page and carried an elegant feel as emphasis was placed on the editor and artist's name to establish hierarchy. The cover in thin, green-blue paper boards was simply designed and included 'The Penguin Modern Painters', inverted in white, the title, Paul Klee, in black all upper-case lettering, and the carefully redrawn Penguin symbol, inverted in white and placed within two circles. The interior speads were designed with two columns of serif type justified body text, centrally placed on each page.”

Richard B. Doubleday. Jan Tschichold designer: the Penguin years. New Castle: Oak Knoll; Aldershot: Lund Humphries, 2006 (p. 113)