Chwast’s work is widely recognized on posters, in books for children and adults, magazines and advertisements. His strength is not in rendering, like so many of the “sentimentalists” before him, but in concept and design. A beguiling sense of humor underpins his illustration, and a keen understanding of traditional design governs his method. Chwast and his Push Pin colleagues helped reintroduce the long divorced principles of illustration and design. Moreover, he helped formulate a new graphic lexicon based on knowledge, appreciation and reapplication of past styles and forms—one that has had long term effects on graphic design.