Contraceptive Technology, the basic reference book in family planning for physicians and allied health personnel, has sold over 1,500,000 copies in the United States and has been translated into several languages. The authors work closely with 26 other respected clinicians, scientists, and educators to produce the books.

Robert A. Hatcher, MD, MPH Dr. Hatcher is Professor of Obstetrics and Gynecology at Emory University School of Medicine, and best known for his book, Contraceptive Technology, now in its 20th edition. He has provided expert and compassionate clinical care for thousands of patients and has helped educate generations of women's health and family planning clinicians.

James Trussell, PhD James Trussell is Professor of Economics and Public Affairs and Faculty Associate of the Office of Population Research at Princeton University. He is the author or co-author of more than 250 scientific publications, primarily in the areas of reproductive health and demographic methodology. His recent research has been focused in three areas: emergency contraception, contraceptive failure, and the cost-effectiveness of contraception. He has actively promoted making emergency contraception more widely available as an important step in helping women reduce their risk of unintended pregnancy; in addition to his research on this topic, he maintains an emergency contraception website (not-2-late.com) and designed and launched a toll-free emergency contraception hotline (1-888-NOT-2-LATE). He is a senior fellow at the Guttmacher Institute and a member of the board of directors of the NARAL Pro-Choice America Foundation and the Society of Family Planning and a member of the National Medical Committee of Planned Parenthood Federation of America. For more information see www.princeton.edu/~trussell.

Anita Nelson, MD Professor of Obstetrics and Gynecology at the David Geffen School of Medicine at UCLA. Dr. Nelson oversees the Women's Health Care Programs at Harbor-UCLA Medical Center in Torrance, CA and in the Coastal County Clinics of Los Angeles County. She is Medical Director of the Research Division of the California Family Health Council. She serves on the editorial boards of a number of professional journals and frequently lectures on a number of women's health care topics.

Deborah Kowal, MA, PA Ms. Kowal, a medical writer and editor, consults for the U.S. Centers for Disease Control and Prevention, the World Health Organization, and other health organizations. She serves as an adjunct assistant professor at the Rollins School of Public Health, Emory University. Trained as a physician assistant, Ms. Kowal provided clinical care for women at the University of Michigan's Health Services before devoting her energies to writing. She is the Executive Editor of Contraceptive Technology and its derivative works.