First of all... I think I learned more about the POD from the introduction of this book than I did from reading the manual that came with the POD. I got better results in the studio after reading info in this book than I had since owning the POD. I'm not much for playing other people's music and trying to sound "just-like-them"... however, in the studio, I get clients that say... "I would like my guitar sound like this song or that song." Well, this book gives you the ingredients to get a big variety of sounds. From what you plug the POD into, to the needed adjustments to get a particular sound. Then just tweak it from there. At the price on amazon.com, you won't regret having this book.