This book explores the detailed practice of Changquan, a traditional Chinese martial art known for its extended movements and dynamic techniques. It breaks down how Long Fist training develops essential skills like speed, power, and balance through structured stances, precise strikes, and fluid combinations. Each chapter examines different aspects of training-from foundational footwork to advanced kicking methods-while connecting traditional principles to modern combat sports and self-defense applications. The writing focuses on practical understanding, offering clear explanations of body mechanics and training progressions without relying on vague concepts or exaggerated claims. The content balances historical context with current training methods, showing how centuries-old techniques remain relevant today. It discusses conditioning for martial performance, the relationship between forms and fighting applications, and how Changquan principles appear in contemporary competitions like Sanda. The approach emphasizes direct, useful knowledge-how techniques work, why certain training methods are used, and what benefits they provide. Rather than presenting martial arts as mysterious or secretive, the book gives straightforward information that practitioners can apply in their training, whether they study traditional forms, modern combat sports, or general fitness.