I've had the privilege to be one of Prof. Sauer's students for several years now and have been fortunate be in his classes for his instruction, insights, and stories. For people who have not yet had the privilege this book gives not only great detail in technical Helio Gracie Jiujitsu, but also the philosophy of Gracie Jiujitsu through the eyes of Profesor Pedro Sauer and the story of his early years in jiujitsu as well. I've been to lots of other jiujitsu clubs and have a library of books and video on jiujitsu technique. For the price this book is a practical steal.
You get photos of step by step detail from two angles so that you can clearly see the technique. In addition he explains things step by step not just how to do it, but why you're doing it. Prof. Sauer's game shuts down an opponents defenses with zero athleticism and pure technique, which he routinely makes to appear effortless.
Not a sales pitch, but I highly, highly recommend this for any jiujitsu or judo player. It will not only add to your general knowlege of Gracie Jiujitsu and help your guard passing, but all but guarantee that other parts of your game get tighter and more technical as well.
High quality pictures. Simple, yet detailed explanations. Jiujitsu philosophy. Low price.