I was lucky enough to get both derren brown books for xmas. Pure effect is already reviewed, but i don't think absolute magic is.
The Effect- This is not a book of derren brown reicks, but more of a manifesto on how magic should be presented.
Cost - About £28 (though i got both on special deal from
http://www.magicbox.uk.com
Difficulty You can't really give it a rating. You take from it what you want.
(1=easy to do, 2=No sleights, but not so easy, 3=Some sleights used,
4=Advanced sleights used, 5=Suitable for experienced magicians only)
Review - Its a guide to how you take your performances to the next level. From mere clever tricks to 'real magic', making the experience more memorable to the spectator. He gives good examples of how he turned tricks which we all know and do, into what he calls real magic. He shows how magicians should not plan their routine with effects in mind, but with the emotional experience it gives the spectator in mind. It sounds heavy, and is in places, but is well worth reading if you want to improve your magic, and increase that 'wow' factor we all strive for.
Overall - A very good read. Derren has a very good writing style. In places fascinating, in others hilarious. It will make you go back to square one with most of your magic effects and make you re-think them for the better. 9/10