http://www.amazon.com/Songwriters-Songwriting-Expanded-Paul-Zollo/dp/0306812657/ref=sr_1_1?ie=UTF8&s=books&qid=1230955903&sr=8-1
It consists of a whole bunch of interviews done with many different singer/songwriters, and how they get their inspiration, what their songwriting process is, and what they were thinking when they wrote some of their songs. It includes interviews with Mark Knopfler, Tom Petty, Jackson Browne, and Frank Zappa, just to name a few. I absolutely recommend getting this book!! You'll notice each person does things a little differently.
