Around 75 years ago, Walter Käch (1901–1970) published his pioneering textbook Lettering: the principal types of running hand and drawn characters. For decades, it served as a basis for instruction in graphic design, painting, and related fields at the Zurich School of Applied Arts. The book laid the groundwork for the Univers and Helvetica typefaces and is still a source of inspiration today. To mark the publication of a new edition of this work, long out of print, a selection of Käch’s typeface designs is presented here alongside examples of his posters. Initially displaying handwritten script, after the mid-1920s the posters betrayed the influence of Bauhaus graphic design, only to return to handwriting from 1940 onward.