I received John Willingham's book as a gift and have read it cover to cover. It's packed full of bbq secrets from the greatest bbq contest cook to ever put on an apron.
Willingham details basic cooking methods including what wood to use and what wood not to use, temperatures to cook at, and he provides his personal recipes. I especially like the rib recipe and his recipe for pork shoulder.
These recipes can be used as written, or you can tweak them slightly to suit your personal taste. The recipes alone would be worth the price of the book.
Purchase BBQ Books