 This article discusses the Chinese philosophy of change based on the Yijing (I Ching, Book of Changes). A canonized Confucian classic, the Yijing is a composite text consisting of three distinct layers. Its first layer is comprised by the 8 trigrams and 64 hexagrams allegedly created by the mythical figure, Fu Xi (see the images of trigrams and hexagrams in  Appendixes 1 and 2).  Its second layer are the hexagram statements and line statements allegedly written by King Wen and the Duke of Zhou during the 11th century BCE (see the names of the 64 hexagrams in  Appendix 3).  Its third layer incorporates seven pieces of writings composed from 5th to 2nd century BCE. Divided into ten segments (hence, the name “Ten Wings”), the authors of these writings used the hexagrams to discuss cosmic patterns, the relations between humanity and nature, and the complexity of human life (see the list of the “Ten Wings” in  Appendix 4).  By 125 BCE, these three textual layers were combined to form what we now call the Yijing. For a detailed account of the textual history of Yijing, see Nylan 2001: 202–52; Redmond and Hon 2014: 1–157; Richard Smith 2012: 1–47.