http://www.p300.com This is a basis for the 9 layered cube that Derek Walters diagrammed in his 1984 version book. Over the years I've developed a simple method to access the cube along with three appraisal combinations and the I Ching together

https://www.amazon.com/TAi-Hsuan-Chi...=derek+walters


http://www.sunypress.edu/p-1577-the-...ystery-by.aspx