David Trott has been riding since childhood and was a Pony Club and Riding Club team competitor. He has also ridden in British Horse Society eventing, open team chases and FEI intermediate dressage. He first became a dressage judge at 21, was upgraded to a list one British dressage judge ten years later and in 1997 was accredited as an international candidate judge. David loves the challenge of teaching - some of his students compete at Grand Prix level - and he rides his own horses in dressage competitions. Penny Hillsdon has competed at Advanced and Grand Prix levels and trains dressage riders to medium/advanced level. She has written extensively for both British and American equestrian magazines and now concentrates more on writing books. Penny is also the author of Pathfinder Dressage.