With how popular he is, and how long he's been working, I am completely surprised Bob Barker hasn't written a book yet [maybe he has, and I don't know it]. As for my favorite, "The Jeopardy! Book" from 1990 is pretty good, then again, it's the only GS-related book in my collection [you may now aim the flamethrowers at me]. It's a pretty interesting look at J! back when it wasn't dumbed-down yet, the dollar values weren't what they are now, and 5 days as champ meant retirement.