The Jazz Piano Book by Mark Levine (Repost)

Endorsed by Kenny Barron, Jamey Aebersold, Richie Beirach, and more, this book presents all the information a student of jazz piano needs in an easy-to-understand, yet thorough, manner. For intermediate to advanced pianists, written by one of the acknowledged masters of jazz piano playing.

Review:

Before Mark Levine's Jazz Piano book came out, choosing a book on how to play piano was a lot like selecting a presidential candidate - - you may not have been crazy about the choices but… (blah blah blah) What makes this book different is that it walks a fine and brilliant line between theory, application and stylistics and it is never dry, and further it is contemporary. By chapter 10 and beyond he's getting into fourth chords, upper structures and "so what" chords. Most books sort of finish up just when Bud Powell is hitting the scene. This book however will take you up to McCoy Tyner and Kenny Barron. - - Unlike other books, his book also sites practical song examples and specific listening examples.
If you're entirely on your own, I think this book, along with a few Aebersold play-a-longs and Amadea's Harmonic Foundations for Jazz and Pop Music would really take you a long way. Your ultimate goal should be able to sit in at Jam sessions and with real players… that's where the real learning begins. Do what you have to do to get to the point that you can hang with a blues or Real Book standards.
(Regarding suitability for beginers vs. advanced players : This book is pretty good for players of all levels, though if you're starting from scratch another book to consider is Brain Waite's "Modern Jazz Piano : A Study in Harmony" or Amadea's book, then this.)