Don't let the title fool you. This is an art book first, 'how to draw' manga-style book second.
This book as a TON of useful information that other manga drawing series lack ranging from Art 101 topics like perspective and scale to basic anatomy. Even if you are not a complete newbie it serves as a nice refreasher course and reminder, all while keeping its manga slant. Beyond the educational values of the early lessons it also has great referance material ranging from various emotions, folds in clothing, hands, feet, and even various age groups/character archtypes.
It is a great educational resource and is presented in a very fun Japanese-inspired manner. I have a collection of maybe 20 'how to draw' books , including a 12 book series on how to draw in a manga style specifically. If I could only recommend one book it would have to be this one. Plus if this book is not enough for you be sure to check out Mark Crilley's YouTube channel for additional instruction.