Peace, Love and BBQ is my favorite. Serious BBQ by Adam Perry Lang is also very good. Any of Dr. BBQ's books are good.
Here's another recent thread with more recommendations...
"Ron Rico, Boss. You can call me Captain Ron..."
Save The Fatty!
FEC-100/BWS Party/Memphis Pro SS/PBC/LBGE X 2/SBGE/Mini BGE/Nomad Pellet-matic/Good-One Model 42/WSM X 2/Cookshack Smokette 008/Weber Performer/Weber Gasser/Weber Kettle X 2/Weber Smokey Joe/WGA/UDS/Coffee Roasting Gasser and a pickle
Remembering a friend