'The Barb and the Bridle' is a comprehensive guide to horseback riding and equitation, specifically designed for women. Robert Henderson, an expert in the field, provides detailed instructions on all aspects of riding, from preparatory exercises to advanced techniques. The book emphasizes the importance of proper form and technique, as well as the connection between rider and horse. Although written in the 19th century, the advice and techniques provided in this manual are still relevant and valuable to modern riders.