Are there similar methods?

A part of BE comes from the ideas of Jerome Callets Trumpet Yoga. RO comes from this book.The Maggio book is another source. According to what Jeff says Caruso, Gordon and Ghitalla are other sources of inspiration, I studied Gordon and Caruso and there are some similarities, but none of the theories outlined in these books are major issues in BE. I think BE is one of a kind in many ways. Despite the fact that most of the basics are not far fetched, the book and the exercises are far from traditional, yet simple to understand and apply.