It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
A step-by-step approach to solo jazz improvisation for piano. Includes transcriptions of sample improvisations and accompanying CD.
Many aspects of technique are more specific to an instrument rather than to jazz. These technique books (and how to find more) are listed in the subject guides for each particular instrument.
Open the guide for your instrument, then navigate to the Technique page. The books listed on these guides are not jazz-specific, but cover all aspects of technique, such as scales, articulation, and more.