This isn't exactly a smoking book, but one of my favorites is Steven Raichlen's "How to Grill"
. It has some smoking recipes and info, but most of the recipes are for grilling. Everything I have made from it has been amazing.
LBGE, WSM 18.5, Smokin-It Model #1, Napoleon Prestige Gas Grill, MHP Grill, Purple and Red Thermapens