First off, this book is an interesting read for any David Gilmour fan. However, I feel that the people who buy this book are interested in some technical guitar information. The average Pink Floyd fan would probably not be interested in this book to being with.
The book primarily tells the history of David's Black Strat. There is some coverage of his Telecasters and Lewis guitar. It briefly discusses what tours and albums he used the Black Strat on, but not with any real specifics. A page or two on Dark Side, one page on Wish You Were Here, a page or two on Live at Pompeii. Nothing really detailed.
My disappointment was the lack of technical info. There is talk of David's mods, or attempted mods, but again, no specifics; literally, a paragraph or two. I wish there was more in-depth talk about the pickups, wiring, and little tips and tricks. Like I said, nearly everyone that buys this book, not only likes David Gilmour, but they probably play guitar themselves, and are looking for some tips to try on their own guitars, or really nail that sweet Gilmour tone.
All that being said, I enjoy the book. It's not that expensive and it is interesting to read about the history of some of David's guitars. I was surprised there was no talk of the "#1" Strat. If you're looking at this book hoping to find some real specific guitar info, you'll be disappointed. I wish Phil made it half technical manual and half history book. Maybe a third edition will have the specifics on pickup windings, mod wirings, tricks, failed mods, etc.