I have one of these books! The one I have is called How to Draw Manga : Beyond the Basics. This one :
They are REALLY good books, I have a few and this is definatly the best one I have. The one I have has drawing techniques, facial expressions, poses, and different colouring techniques [which are in full colour inserts at the end.]
It's extremely easy to understand, and even if your a beginner it is really easy to produce some good work, and I still use techniques I learnt in this book.
I highly recommend it ^-^