Sandy Colliernbsp;competed in her first horse show at the age of 6 andnbsp;in the early 1980s she began to make a name for herself in California Reined Cow Horse Association events with wins in several categories. In 1991 shenbsp;won the herd work preliminaries in the Snaffle Bit Futurity's open division, and in 1993 she won the World Championship Snaffle Bit Futurity Open Championship. She is the only female rider to win the world's toughest cow horse event. She lives in Buellton, California.Jennifer Forsberg Meyeris an avid horsewoman and editorial director ofHorse & Rider. She is the author ofnbsp;The American Paint Horse,Clinton Anderson's Training on the Trail, andThe Performance… Horse.nbsp;Shenbsp;lives in Labrobe, California.Al Dunningis a world champion reining and cutting horse trainer and the author ofReining.