This book is broken down into sections on motives, application and development of chord patterns and improvising on blues and rhythm changes. Berklee prof Rochinski starts with three pages of motives, the essential vocabulary of jazz. Many of the motives presented are taken from the heads and solos of Charlie Parker. The author then introduces arpeggios, arpeggios with tonic resolution, passing tones, neighbor tones and indirect approaches. This is 60 pages of serious jazz improv study. There's no BS and no filler. A concerted effort with this material will have you creating lines in the style of Charlie Parker, Lester Young and Tal Farlow.