The Xing Yi Quan of Master Li Gui Chang details the key fundamentals of the art of Xing Yi Quan: The Five Elements (Five Fists) and the Five Element Linking form (Wu Xing Jin Tui Lian Huan). These are the essential forms of Xing Yi Quan, the origin of all other movements, changes and transformations. In this unique book, Li Gui Chang's disciple Song Zhi Yong details the body actions (Shen Fa) of each movement and form, showing the correct alignments and power dynamics. The over 600 photos of Master Song in action show his mastery of the art, and provide the reader with clear instruction in the fundamentals of Xing Yi Quan. In Northern China and in Shanxi Province, the purported birthplace of Xing Yi Quan, Master Li Gui Chang is a legendary figure in the world of martial arts. Few practitioners have approached Master Li's achievements in Tai Ji Quan and Xing Yi Quan. Master Li Gui Chang's Xing Yi is famous for its emphasis on subtle internal strength and firmness hidden within a soft, supple exterior. In this Xing Yi method, issuing power, while important, is secondary to whole body skills of connecting, sticking, listening and following. In his first book, Tu Na Si Ba: The Four Breathing Forms of Master Li Gui Chang, Song Zhi Yong revealed the specialized breathing exercises that develop the soft, supple, whole body power characteristic of Li Gui Chang's Xing Yi. In this second companion volume, The Xing Yi Quan of Master Li Gui Chang, Master Song Zhi Yong demonstrates how the internal strength developed in Tu Na Si Ba manifests in the martial forms. 深奥形意拳拳术的动态呈现中英文双语专著 《形意拳之五行连环》详细描述了形意拳拳术的关键基本原理： 五行（五拳）和五行连环（五行进退连环）。这些是形意拳的基本形式，所有其他运动，变化和转换的起源。在这本独一无二的专著中，李桂昌的徒弟，宋志勇，详细描述了每一个运作和形式的身法，演示了正确的定线和力量的动态。宋大师600 多帧连续动作的像片演示了该拳术的神秘之处，向读者提供了形意拳基本原理的清晰的诠释。 在中国的北方，在山西省，在形意拳的传说的诞生地，李桂昌大师是武林界的一个传奇人物，很少有人能够在太极拳和形意拳上接近李大师的成就。李桂昌大师的形意拳因强调微妙的内力和隐藏在柔软和灵活外表下的刚性而闻名于世。 在他的形意拳中，发力，虽然重要，对全身的连，粘，听和跟的技能而言也是次要的。 在他的第一本书《吐纳四把 - 李桂昌大师的四种呼吸方法》中，宋志勇揭示了能够发展李桂昌形意拳特征的柔软，灵活和全身力量的特殊呼吸训练方法。 在他的第二本姐妹书《形意拳之五行连环》 》中，宋大师展示了吐纳四把中发展的内力怎样表现在武术的形式上。