No malady, not even epilepsy, has been regarded by the public with more superstition than has stuttering. The well-known diversity of opinions among speech pathologists as to the etiology and therapy of stuttering has been anything but helpful to the layman. Recently the National Society for Crippled Children and Adults asked the American Speech and Hearing Association to prepare a booklet on the subject of stuttering for popular distribution. To Professor Charles Van Riper was assigned the difficult task of preparing a manuscript which would avoid controversies, which could be endorsed by authorities of widely varying schools of thought, and which could at the same time manage to say something concrete and enlightening.