So the book I preordered and was anticipating for about 3 months, The 32 Principles by Rener Gracie, was disappointing to me. The best part about the book was the QR code at the beginning of each chapter that leads you to a video of Rener demonstrating a technique. His attempt to connect the 32 principles to life was weak at best. The quotes that he used mostly had nothing to do with the principle he was teaching. He told some good stories but much of the book was a sales pitch for his products. He really could have condensed these redundant principles down to about 12.