Perry Martin.
I missed this 3 part BH series when originally printed, but I really enjoy the opportunity to get inside of a successful breeders head, even if it only involves one racehorse. The book “Horse of a different color” by Jim Squires was such an opportunity also and I haven’t read it yet, I suspect Barry Irwin’s “Derby Innovator.” is also.
http://www.bloodhorse.com/horse-racing/articles/107939/perry-martin-observations-of-a-breeder-pt-1
http://www.bloodhorse.com/horse-racing/articles/107938/perry-martin-observations-of-a-breeder-pt-2
http://www.bloodhorse.com/horse-racing/articles/107931/perry-martin-observations-of-a-breeder-pt-3