This guide to jazz would probably be helpful to someone new to the subject, but might be even better for someone who already has a bit of familiarity with jazz history. I say this because, although the book is not an encyclopedia of jazz, individual chapters are internally organized alphabetically, rather than chronologically. This produces some potentially confusing results for the newcomer. For instance, in the chapter on styles or genres of jazz, it means that Bebop is discussed before New Orleans jazz. Even Dixieland revival is discussed before New Orleans jazz. And they are all discussed before Swing. How lucky for the reader then that, in the chapter on jazz greats, so many early pioneers just happen to have surnames beginning with letters early in the alphabet (Armstrong, Bechet, Beiderbecke...). Imagine the potential confusion if Charlie Parker had been named Charlie Barker! Still, as a long-time jazz fan, I learned something useful in every chapter.