I am presently sorting out and editing a large lifetimes collection of family photos and decided to use Picasa to do this. It worked well but there were a number of questions and the Picasa Help was not particularly helpful, including not allowing me to be quite sure I had the right approach to the all-important issues of back-up.I found the book to be very helpful and it has enabled me to resolve all of my queries. It is well produced and fairly simple - this is good as one can ignore the obvious pafrts and get good help where it is needed. It's now a bit out of date but not too much. All in all a very uaeful and strategic buy for anyone who is using Picasa for a managing a major collection of photos.