Improvisation plays a key role in the music therapist's toolkit. Tony Wigram's practical and comprehensive guide and its online content are essential for students, teachers, therapists, and musicians as a book of musical techniques and therapeutic methods. Starting with an overview of the development, teaching, and analysis of improvisation skills, Wigram describes techniques ranging from warm-up to mirroring, rhythmic grounding, containment, and support. Specific sections are included on piano improvisation, strings, and 2-, 3-, and 4-note improvisation, as well as advanced skills such as frameworking and transitions. Wigram also offers techniques for thematic improvisation, group improvisation, and outlines methods for analyzing and reporting improvisation processes. Notated examples allow readers to try the techniques and progress as they read, with audio examples in the accompanying online content adding an extra dimension to the structure and guidance provided at all levels of music students and therapists.