Well I'm not Bob but my pick for books are:
BOG Bonanza of Green- simple, intuitive approach to dirt growing. Outrageously foolproof! And presented in a lighthearted way. Could use a few more pictures but hey, the ones in there of Bushy and his BOG Bushes are good for a drool.
Jorge Cervantes indoor bible- They have it at Barnes n Noble, lol. It's the super basic grow book that most of us have probably owned at one point. Contains a pretty good pictorial guide to cultivation problems and symptoms
Then when you want to get all geeky, Greg Green's breeding book is outstanding.