I really enjoyed both of these books. A good portion of Scrivener's book was beyond my current comprehension, however, I still found a lot in it to enjoy, I'm glad I read it and I will read it again in the future. Bill and Bobbie Irvine's book was my cup of tea in every way. I adore this book...I want to own this book ($500+ is out of my current price-range!!)...it is beautifully written, it is a wonderful book for dance and for life, it touched me on such a level, it covers so many topics we have discussed on DF...I absolutely love this book...and I'm mightily upset that I have to return it to the library!!!