Jazzwise magazine had an on-line sales arm, but I now find changed name to "sendmemusic" so no wonder I couldn't find them!
Jamey Aebersold does over a hundred tutor books, on jazz for all instruments, with CDs. There are many other tutor books for jazz piano, so you should find something out of this lot. There also transcriptions of all the famous pianists - Peterson, Shearing, Brubeck, Tatum, etc, often graded for various ability levels.
Learn the Twelve Bar Blues chord theory thoroughly, then more advanced variations on it. If you feel brave, Giant Steps is a challenge! Most Charlie Parker tunes were based on well known chord sequences.
You also need to know all chords, is all keys, and there are books for that too.
If I find specific books that might help I'll try and come back.
(I played drums for forty years, so didn't need this difficult stuff!)
So start with this: sendmemusic.com/jazz/jamey-aebersold.html