Eric Hill, whose effort to entertain his young son with a simple drawing of a dog named Spot blossomed into a popular series of children's books that have sold more than 60 million copies, has died. He was 86. The other great thing about this man was his use of something that is common now, but unheard of when he started. Flaps which you raised to see part of the photo. That of course is also the first thing that kids destroy when they read the book.