The book "The Dao of Ba Gua Zhang" presents the internal Chinese martial art of Ba Gua Zhang both theoretically and practically for beginners and advanced practitioners. Divided into three main chapters, it builds upon essential content and relates them to one another. The first part includes philosophical fundamentals about Daoism, Yin and Yang, the trigrams and hexagrams in the I Ching, as well as fundamental processes of internal alchemy. The second part takes these core ideas and applies them to Ba Gua Zhang. This presentation makes the philosophical depth of the martial art transparent – an indispensable connection for understanding Ba Gua Zhang in its essence. The integration into philosophy is complemented by the historical development and technical information of the basic movements. Original traditions such as the 36 Songs attest to its authenticity.