A new, fully authorised biography of the most successful trainer in British horse racing history. In the stratified and often secretive world of racehorse training, Mark Johnston has always been different: forthright, combative, provocative, and candid - a man who delights in questioning convention. Over more than three decades, he has gone from being a vet from a thoroughly working-class Scottish background to, mathematically, the most successful trainer in the history of British horse racing. In this new, fully authorised biography, acclaimed author Nick Townsend provides a unique insight into the world of Mark Johnston and his phenomenally successful operation. With unparalleled access to Mark and those closest to him, Mark Johnston: Phenomenon will dig into his storied career, his strong and passionate views on the sport of horse racing, and how he's planning for the future in unprecedented times, offering a fascinating portrait of one of horse racing's most singular figures.