This was a super book, actually it was more of a manual or a workbook. It has 5 levels of mastery of skills like concentration, awareness, attitude, breath-work, and other subjects including awakening and mindfulness. The 5 levels are Novice, Student, Warrior, Adept, and Master. You progressively work through each level's sections of exercises for each subject in the level. One of the things I loved about this book is that it states that the book is meant to be a manual to be used over the course of months (at the minimum), but most beneficially over the course of years. It doesn't promise instantaneous results; it pretty much says that what you put into it is what you will get out of it, and that it takes time to achieve even subtle results. While this may seem off-putting or discouraging, I like the honesty of the author in saying these things because it is difficult to measure success in meditation. There are good days and distracted days. I recommend this book because if you are serious about taming the drunken monkey that is your mind, this manual is a great resource for learning how to do that with exercises and meditations. If you keep at it and maintain a regular practice, this book will surely give results (I can't say this 100% for certain since I've only read it and haven't started practicing yet, but it looks like it's a good manual to teach meditation, concentration, mindfulness, and awareness).