These books are a truly major contribution to brass literature in general and the trumpet in particular. In this Magnum Opus, Thibaud instructs in the value of pedals and double pedals and how to learn to play them. Then he systematically carries these settings back into the normal range and demonstrates the benefits. This is a distillation and extension of Maggio, Spaulding, Stamp, et al, in a typically Thibaud fashion. These books present a thorough, integrated and progressive way to take the advanced trumpeter to new levels.