When Looking for jazz improvisation literature people will walk into a sheet music department and sometimes be astounded at the prices of the theory and practice books. A concise quality book that contains all of the essential information and is well written and easy to follow can start anywhere from $30 to $150 plus for the Lydian Chromatic Concept!
So I have whittled it down to 3 books. [I am sure there are some other very well written books out there that is not on my list] but any of these three books will hold you in good stead when you are starting out.
The first 2 books are “Inexpensive” and contain a mountain of material.
BOOK 1: JAZZ SOLOS BY LES WISE. THIS BOOK IS IDEAL FOR GUITARISTS BECAUSE IT HAS TABLATURE
BOOK 2: JAZZOLOGY BY ROBERT RAWLINGS AND NOR EDDINE BAHHA
BOOK3: A BIT MORE EXPENSIVE BUT IT IS A COMPLETE ENCYCLOPEDIA BY MARK LEVINE CALLED “THE JAZZ THEORY BOOK”