Julius Wiedemann studied graphic design and marketing, and was an art editor for digital and design magazines in Tokyo. His many TASCHEN titles include Illustration Now!, Logo Design, Jazz Covers and Information Graphics.
Steven Heller is the co-chair of the School of Visual Arts MFA Designer as Author Program. For 33 years he was an art director for The New York Times, and currently writes the “Visuals” column for The New York Times Book Review. He is the author of 120 books on graphic design, illustration, and satiric art.