The Book of Changes, or I-Ching, is the primary reference work for advanced Armabella. While any version of the Book of Changes can be used, the commentaries in most are, at best, unhelpful and, at worst, misleading for the purposes of Armabella practice since they lean towards divination and philosophy, rather than the heavy focus on direct, real-time practical application that lies at the heart of Armabella. This is Armabella's own commentary-free version of the book, and has significantly better and more extensive cross referencing, as well as using Armabella's standard naming conventions for the Trigrams and Hexagrams, the unique SCRE classification system, and providing easy-access references for 21s in situ for all entries. This book is not suitable for beginners.