YiJian: Learn the I Ching

YiJian is a beginner's course in the I Ching (Book of Changes). Eight lessons start from yin and yang and the order of the lines, then guide you through all sixty-four hexagrams one by one: each has a diagram of its two trigrams, a plain-language explanation, a worked example and quiz questions. When you have learned the basics, the app also lets you cast a hexagram and read it yourself with what you have learned. EIGHT BEGINNER LESSONS Yin, yang and line order; the eight trigrams; how the sixty-four hexagrams are built; changing lines; the primary and resulting hexagram; judgments and line statements; how to read, and what a reading cannot tell you; a full worked case. Every lesson has something to do with your hands: tap lines, stack trigrams, find the changing lines, work out the resulting hexagram, pick a sensible reading. A wrong answer tells you what went wrong and what the right…