Understanding The Power Of The X Factor

Education & Reference Psychology & Self-Help Sport & Recreation

Marianna Haun’s Understanding the Power of the X Factor unlocks the genetic secret many trainers call the “large heart gene,” explaining how it propels some Thoroughbreds to racing greatness while others plateau. In this 2001 paperback, Haun blends horse genetics, pedigree analysis and track strategy into a readable roadmap for owners, breeders and enthusiastic fans.

The 253-page volume explores real-world examples from the American classic circuit, showing how to spot the X-factor in conformation, heart scans and bloodlines. Whether you handicap races, raise prospects or simply love equine science, you’ll find practical tips on mating choices, sales selections and training tweaks that maximise inherited potential.

This very-good-condition copy shows only light cover scuffs and small edge marks; pages are clean, unmarked and tightly bound. It comes from a smoke-free home, ready to join your reference shelf without the wait for print-on-demand delays. A sound, affordable edition of a title that rarely surfaces in the second-hand market.