He has written a number of reference works on the subject, some of them co-written with his wife Lily Powell who is also an award-winning novelist in her own right.
She has collaborated with her husband, the French equestrian specialist Jean Froissard, on a number of reference books on horsemanship.
Colin Powell | Lily Tomlin | William Powell | Anthony Powell | Robert Baden-Powell, 1st Baron Baden-Powell | Michael Powell | Baden Powell | Lily Allen | Dick Powell | Robert Baden-Powell | Lily Pons | Eleanor Powell | Robert Powell | Lily Lanken | Enoch Powell | Monty Powell | Lewis F. Powell, Jr. | John Wesley Powell | William Powell Frith | Powell River, British Columbia | Powell and Pressburger | Lawrence Clark Powell | Jane Powell | James Powell and Sons | Powell | Olave Baden-Powell | Michael Powell (director) | Clifton Powell | Baden Powell (mathematician) | Lily Tomlin's |