If you're looking for a marketing book, check out:
"Covert Persuasion: Psychological Tactics and Tricks to Win the Game" by Kevin Hogan http://www.amazon.com/Covert-Persuasion-Psychological-Tactic...
Great book about all-around persuasion techniques , marketing, and also copywriting.
This looks interesting as well. Thank you!
Learn to market well, and the PR will write itself.
Any book by Dan Kennedy is good.