As a freelance writer, Alan Yuill Walker has spent his life writing about racing and bloodstock. For over forty years he was a regular contributor to Horse & Hound and has had a long involvement with the Thoroughbred Breeders' Association. Other magazines/journals to which he has contributed on a regular basis include The British/European Racehorse, Stud & Stable, Pacemaker, The Thoroughbred Breeder and Thoroughbred Owner & Breeder. He was also a leading contributor to The Bloodstock Breeders' Annual Review. His previous books are Thoroughbred Studs of Great Britain, The History of Darley Stud Farms, Months of Misery Moments of Bliss, and Grey Magic.