It is an interesting book, gives the I Ching its wholly Chinese vibe, along with the respective illustrations that give the book its edge.
This book is more useful for understanding the cultural basis for the use of the I Ching, its history and logic, than it's for actually using the I Ching for "divination". The hexagram explanations, I find, are a bit off, but then again maybe it's stuff lost in translation.
It's helpful for someone interested in the philosophy and workings of the I Ching, but it's in no way a definitive edition. Plus, the title in greek is written "Ι Jing", which I find annoying to no end.