You'll need more than just the "blue book" for the written exams. There's a set of sample questions as well floating around as well. I have some copies of some of the questions but they may be a little old. The FAA ATP questions are also a good source to study from. If you're in China at the moment, try and touch base with some expat pilots. They can give you the heads up. BTW, brush up on your Chinglish as well.
Engrish.com is a good resource for that.
