A new system of horsemanship is a treatise that outlines systematic approaches to equestrian practices, aiming to refine techniques in horse riding and training. The work highlights the balance between utility and elegance, stressing the importance of posture, handling, and the relationship between horse and rider. The text opens by introducing the basic principles of horsemanship, with a focus on the correct positioning of the rider, particularly the concept of "the Horseman's Seat." It contrasts various cultural riding styles and offers a unified methodology grounded in effective principles. Bourgelat emphasizes maintaining a natural and relaxed posture to achieve both control and grace. Early chapters also discuss the significance of understanding the horse's anatomy and behavior, laying the foundation for more in-depth guidance on horse training and management. Throughout, the treatise aims to provide both theoretical and practical advice, making it a comprehensive work for those seeking a deeper understanding of the art of horsemanship.