Joey Pigza Swallowed the Key by Jack Gantos
I was listening to a book on tape called Joey Pigza Loses Control by the same author and completely loved it! The books are about a young boy with ADD who is self admittedly "wired." Joey comes from a long line of ADD as both his father and paternal grandmother are sufferers. Abandoned by both parents, he lives with his crazy paternal grandmother, a chronic smoker who, you'll remember, also has ADD. His mother suddenly comes back into his life and tries to get him on meds so he'll act like a normal kid. In the book, Joey is forced to wear bunny slippers because he can't stop kicking his chair, he tries to sharpen his finger with a pencil sharpener and he cuts off a classmate's nose when he trips and falls.

How to Deal With Difficult Customers: 10 Simple Strategies for Selling to the Stubborn, Obnoxious, and Belligerent by Dave Anderson
Anderson calls these customers SOBs for short :o) and gives scripts for how to respond to different difficult situations. The book is written in simple language and would be helpful to beginning sales professionals as well as the seasoned seller who's starting to experience feelings of being burned out.