Volume 5 is full of tasty blues transcription, licks, and studies, and includes detailed analysis of every piece. When I say detailed, I mean it. Jeff takes the time to really dig into his work and no stone is left unturned.
Jeff is an accomplished pianist and author and has published with Hal Leonard more than once.
coil-bound version (your best choice - opens flat for easy reading $17.50):
paperback version ($18.95)
If I'm not back in 24 hours, call the president.
Scot is available for skype jazz piano lessons (and google hangouts, phone call, etc...)
Use the contact link at the top of the page.