You can get some of the tricks in these books for free, on the Internet!
Calm down.
I mean that, if you go to Mr Beam's site, he offers one effect from each volume in the magician's only section:
http://www.stevebeam.com/tricks.htm
Presumably as teasers, so you want to buy the books (even more). However, I'd also appreciate a full review. Especially from someone who has several (all?) volumes. I'd be keen to buy one (maybe, if I can slip it past my girlfriend, two), but which one/s? Gut instinct is that the first vol is going to be the best, but that might not be the case (and it's also got significantly fewer pages than the others).