I bought this to give me a bit more of an overview on bouldering after taking a beginner's course.
I've learnt a lot from this, although I felt a bit plunged in the deep end. The author seems to assume readers will be experienced in some other form of climbing. If you're not, I highly recommend looking in the glossary as soon as you find an unfamiliar word. Content wise, it's covered everything I could have asked for: equipment, movement, training techniques, safety etc.
Another reviewer commented that the movement section is weak, and suggested this is because it's inherently hard to describe in words. Based on my experience of martial arts, I agree with this explanation. There's enough in here to make me investigate moves and holds I wasn't aware of before, which is all I would ask.
Peter Beal gives advice to approach bouldering in a calm, balanced way. Everywhere he mentions the need to push yourself he warns against doing things carelessly, or for ego or show. A few times I felt I was reading a book on tai chi, until he made the comparison himself at the end.
The writing is terse and covers each point simply before moving on to the next. It's an easy, enjoyable, uplifting read. I can't comment on the technical content because I'm so inexperienced, but it has motivated me to practise bouldering even more.