Zhou, the name of a dynasty; Yi, the title of a book. Its hexagrams, first drawn by Fuxi, embody the principles of interchange and transformation, for which it is named Yi (Change). The judgments, in turn, were appended by King Wen and the Duke of Zhou, for which it is ascribed to Zhou.
β A Comprehensive Exegesis of the Fundamental Meanings of the Zhou Yi (Book of Changes)
"YiJue" simulates the coin method, through six tosses of three coins to build the hexagram, and interprets the changing lines using Nan Huaijin's divination method.