Bob Brozman is an expert on bottleneck blues guitar, and in his own research and playing has focused on the resonator guitar. This book finds Brozman focused on his customary DGDGBD, low open G, tuning. There is a wealth of material here, although the book is not necessarily as comprehensive pedagogically as it could be. Many of the Mel Bay and Alfred blues guitar method books seem to progress at a somewhat uneven pace. What tends to happen is that a logical, step-by-step progression is interrupted by a leap into more complicated techniques. Bob Brozman is little more evenly paced than some authors, but there are some technical leaps as one progresses through the book. What really helps is the accompanying CD, on which Brozman demonstrates the examples and provides spoken introductions and notes on the techniques. His approach on the CD tends to sound conversational enough that one gets the sense that they are in the room with a resonator bottleneck teacher. It's not as slick a recording as it could be, but that's the beauty of it, and why it feels like Brozman is talking directly to you, his student. If you are looking for a collection of acoustic blues transcriptions, this is not the place to look. Brozman does include his transcriptions and versions of some acoustic blues classics, but the main focus is on building up technique and musicality so that the player has enough tools to construct his or her own version of acoustic blues guitar pieces. Definitely a worthwhile purchase!