In good condition.

The method best supported by scientific evidence
by Landrum B. Shettles and David M. Rorvik

Over one million copies sold!!!
Over the last twenty-five years, thousands of couples have turned to the Shettles method for choosing the sex of their babies. And thousands have been blessed with the boy or girl they hoped for. In fact, the properly applied Shettles method gives couples at least a 75 percent chance of having a child of the desired sex. Some researchers have reported success rates up to 90 percent!

Many sex selection methods have come and gone, but the Shettles method - constantly under scrutiny and continually refined-has endured.... The Shettles method is still the best way to conceive the boy or girl you always wanted.

Landrum Shettles was an associate professor of obstetrics and gynecology at Columbia University's college of physician and surgeions, and director of research at the New York Fertility Research Foundation. He is the author of From Conception to Birth: The Drama of Life's Beginnings.

David Rorvik is a former Time magazine science and medicine reporter, and has contributed numerous articles to the New York Times Magazine, Harper's, Reader's Digest and other magazines