QUOTE(lewimus @ Jan 20 2010, 06:00 PM)

As a classically trained pianist, I find jazz SO difficult! Does anyone know of any good self help books? The notation is particularly hard for me (I mean the chord notation really). Any advice would be very much appreciated! Thanks
Learning the chord notation is only a tiny part of learning to play jazz. True, there are standard formulae to apply, but a jazz pianist will play what is apparently the same chord in a different way depending on the context, who he's playing with, what he feels like on the day etc, etc. And different pianists will interpret the same chart in a different way. What's written down on jazz charts is just a framework, everything's up for being changed and re-interpreted.
The best piece of advice I was given was to leave the books alone and start listening - everything you need to learn is recorded somewhere or other.
To get to the point of being semi-competent at playing jazz (as a sax player) the steps I took were
1. Get some 1-2-1 lessons from a jazz musician to point me in the right direction
2. Join a group workshop - this is the thing that has helped the most.
I also listen to jazz, go to live gigs etc as much as possible - that's really important too.