While the book is in no uncertain terms "For Dummies", the book contains enough popular acoustic songs to keep the beginning player interested, while allowing them to grow as they progress.
I've used this book for about a year, in parallel with leasons from an instructor, and it has exceeded my expectations. The performance notes won't make much sense to a true beginner, but in conjuction with leasons, are extremely helpful in excelling quickly.
Some criticisms, the book is mis-labeled. It is not a book for beginners learning how to play acoustic guitar from a book. Rather it is a compendium of acoustic songs & tab, period. The chord chart is incomplete for all the chords used in the book, but unfortunately, that's not uncommon. Performance notes often use terms beginners will be unfamiliar with.
Still, with a wide range of very good songs, I recommend it. Just make sure you take lessons if you're looking to actually learn how to play. :)