I've read/re-read a couple of books recently which are a must for Jelly Roll fans.
Willie "the Lion" Smith's autobiography "Music on my Mind" paints a marvelous picture of a piano player's life back when the piano was truly king. Jelly Roll, of course, is remembered by Willie.

The second book is called - something like - ""Louis Armstrong's "New Orleans"" and paints a marvelous evocative picture of that city when Louis was learning his trade and Jelly Roll was strutting around in all his magnificence!