The best maze book I have ever seen! Its for kids, obviously, but is actually really difficult to do and you just can't put it down. We found the grown ups in our house spent just as long as the kids trying to solve the puzzles which are really intricate and well-detailed. Each puzzle is superbly illustrated down to the finest details.
I would recommend this book for age 8 years +, due to the intricate nature of the puzzles, with added rules and things to avoid, this is no simple maze book for lazy afternoons - its thoroughly addictive!