“The most comprehensive book on mathematics I've ever seen. It's beautifully written, with many illustrations and examples. In addition to general math information, Steiner philosophy, and Waldorf education philosophy, the book includes chapters dedicated to each grade, 1st through 8th grades, with detailed information on the methodology of teaching math, specific examples to complement the text, as well suggestions on how and when to teach particular math concepts. This book is rich with insight and information. The author conveys a deep understanding of math in general and specifically for its application in Steiner schools. If you have no other book on math, this one would be adequate for writing your own math curriculum. It works perfectly to accompany a Waldorf curriculum and would be a wonderful addition to any home library for those who have a passion or interest in mathematics.... Though I use it as a reference book, I think it's definitely worth reading cover to cover.