Calt and Wardlow detract from an otherwise spellbinding read with over-the-top invective and demeaning comments about Patton's blues playing contemporaries and rival blues scholars. I see their attack on Evan's work is perpetuated by a reviewer of this book. Oh well, it says more about them than it does about their subject matter. Never mind, it's very much worth reading anyway. Patton is, along with Robert L. Johnson, and perhaps Skip James, an absolute one-of-a-kind musical genius and personality who could be copied but never surpassed at his own game.
This book will be expensive now, but it's well worth the investment for those with an interest in Charlie Patton, his life and times, and the music that he and his peers produced during the first decades of the 20th century. Be sure and balance it against the work of others (I would suggest Evan's "Big Road Blues, which I find a bit arid and pointy-headed, too)) just to get other views and to better appreciate the needless bile Calt and Wardlow let spill in pursuing their personal musical jihad.