Jazz Improv is a core book of the Jazz in Focus Library, introducing students to seventh chords, the ii-V-I chord progression, and approach tones. As with the two previous improv books, the step-by-step approach encompassing: 1) a simple concept, 2) a short demonstration piece, 3) riffs for improvising, and 4) a free improvisation chart assures steady progress and opens the door to more advanced study. Jazz Improv is an essential introduction for any piano student who wants to begin the study of jazz, and the material is flexible enough to be used by younger as well as more experienced players.