http://www.musicroom.com/se/id_no/0439386/details.html
Search & Reflect
Written by the late, great John Stevens, this is an essential guide for anyone running improvisation classes, community music classes, jazz groups and theatre groups. This book provides exercises that cover a range of abilities. Each practical example can be used as jumping off points to aid improvisation and rhythm skills or as a warm up. Each section comes with a clear explanation, diagrams and hints of what to look out for, that might go wrong. A much imitated never bettered, teaching classic.