Peanuts: The Art of Charles M. Schulz (ISBN 0375714634) is a book dedicated to Schulz which was first published after his death. It talks about the history of Peanuts, and where Schulz got his inspirations from. The book begins with an introduction to Peanuts by Schulz's second wife and widow, Jean Schulz.
The introduction describes Schulz's childhood and early adult life, before he started writing Peanuts. It calls him by his nickname (Sparky), and talks about his hobbies, interests and early writing career.
The book goes on to detail the strip itself, starting from Schulz's sketches. It shows many Li'l Folks comic strips and Peanuts strips, with side comments by Chip Kidd. The book also refers to companies that have used Peanuts characters in their logos.
Kidd also designed the book Only What's Necessary: Charles M. Schulz and the Art of Peanuts