Signed book: Happiness Is a Warm Puppy. San Francisco: Determined Productions, 1962. Hardcover, 5.5 x 5.75. Signed and inscribed in blue ballpoint on the first free end page, “To Jean Staples, with best wishes, Charles M. Schulz,” with Schulz adding a nice full-length sketch of Snoopy sitting in some grass. In fine condition, with some light wear and soiling to covers, and faint sunning to the spine. The signed page is flawless. Pre-certified PSA/DNA and RRAuction COA.