It is hardly definitve in that, for two things, it doesn't even mention Hank Harrison and plays down Pig Pen McKernan's role in forming the band. Not mentioning Harrison (or bad rapping him) is ironic since the book cover emphaiszes, in large print, the words THE DEAD, which is, not coincidentaly, the title of Harrison's trilogy, Trager can hardly be thought of as a literary artist. I give it 2 stars for reference only.