This textbook has been an established reference for many years. The fourth revised edition is enlarged and updated with the most recent developments in contraception and family planning. A new feature that has been added is the recognition and discussion of natural contraceptive methods, which should be regarded as a welcome partner to established scientific methods. This is particularly valuable in developing societies where conventional methods are often not available or affordable. This book is essentially targeted at the health professions, including doctors, students, pharmacists and nurses – especially in family planning clinics. However, anyone seeking information on contraception will benefit from it.