Two variations: 1. Become Your Own Tesio is a guide to using pedigree analysis as an important tool in evaluating horses and designing matings.2. Become Your Own Tesio provides an overview of basic genetic principles, pedigree designs, and pedigree analysis. Along with the explanation and story of the art of pedigree analysis, examples of horses that demonstate each subject are presented with their pedigrees and photo. The seven main pedigree designs for building potency are each discussed with examples and information on the studies and sources. And six recent genetic studies that apply to sport horse breeding are presented from a breeder's point of view. The goal of the book is to provide a way for the breeder to build potency in the traits they need for their goals.