This book was primarily prepared for elementary students, to present to them the principles of personal hygiene and to serve as a guide to healthful living. Originally the book was prepared so that it would be especially suited to the needs of girls; in the second edition the necessary changes have been made to meet the needs of boys as well. Other alterations have been made to keep the subject matter abreast of the field of hygiene. In the book are discussed, in a clear, authoritative fashion, matters relating to personal hygiene, such as posture, exercises, clothing, care of the skin, nutrition, sunlight, mental health, recreation and sex hygiene, with a short chapter on health fads, fancies and follies. The bibliography and questions for class discussion add to the usefulness of the work as a textbook.