This book deals with nonverbal soundmaking and how emotions are communicated acoustically. The author conducted much of the research presented in the book while he was the recipient of a Fellowship Grant from the Foundations' Fund for Research in Psychiatry. It is the reports of the author's original research which will interest the psychiatric reader most, for these are ingenious studies attempting to test various hypotheses about the emotive significance of the intensity, pitch, and other acoustic measurements of, principally, human sounds. Other material in the book, which actually constitutes several chapters, for example, 1, 9, 10, and 11, deals with data with which the average psychiatrist is likely to be already well acquainted. Readers without psychiatric training, however, may well find some of this other data new and interesting. A brief resume of the contents of the book, by chapter, will illustrate its scope. Chapter' 1 reviews the