Many excellent books on tumbling are available to the instructor or coach. Most of these, however, deal with individual stunts without definite series of progressions. Furthermore, in most cases the descriptions and illustrations represent the viewpoint of the single author or authors.
A need seemed to exist for some degree of uniformity and standardization in the performance techniques of the usual tumbling stunts. The authors accordingly undertook to secure, by objective methods, reproductions of the composite viewpoints of representative tumbling instructors from various parts of the United States.