which book to get?


I am wishing to learn how to listen Jazz and at a deeper level as well, though I dont play instruments, but still keen to discover what i like, what i dont like, actually have limited knowledge of Jazz, so you could say Im a novice.

I'm keen to develop an ability to discern styles and epochs in the jazz history, and so now I am debating on which of the 2 books of which i narrowed down from several choices, I have to choose 1, i can't make up my mind, which shall I get?

The Jazz Theory Book by Mark Levine

Jazz Styles: History & Analysis by Mark C. Gridley

I can only pick one, so which one would you choose?

Many thanks
grummer
Ken Burns multi-dvd set is a documentary called "Jazz" that initially aired on PBS. It's entertaning, informative and provides historical perspective on the evolution of Jazz starting from the blues.
thanks everyone so far for really being helpful, i also read that"complete idiots guide to Jazz' is better than "jazz for dummies", its hard to decide Ken Burns or Smithsonian Collection of Classic Jazz for that 'first chronologically compiled selection' to start off with, guess either will do, maybe get that Idiots guide as well, and maybe Gridley's Jazz style later on.

Already found i like Duke Ellington's music and really enjoy be-bop (Charlie Shavers and Buck Clayton), getting there slowly.

Cheers
Listening instead of reading is good advice. But there comes a time when reading adds to the enjoyment. Ted Gioia, an excellent jazz pianist in his own right, has written a very good survey entitled The History of Jazz. It's well worth checking out. And don't sell the autobiographies short: Mingus' Beneath The Underdog is a classic work (the unkind would even say 'yes, of fiction', but what autobio isn't to some extent), and Miles Davis' is well worth reading as well.