Just completed reading VooDoo Vintners: Oregon's Astonishing BioDynamic Winegrowers by Katherine Cole.
It's a small paperback covering Steiner's original work and the history of BD and it's recent evolution in Europe. It then focuses on the development of BD in the Oregon wine industry, featuring excellent personal viginettes of many of those movers & shakers. With a chapter detailing to thoughts of many of those Oregonians who are naysayers of BD.
All in all, I thought it a very balanced coverage of BD, as applied in Oregon. Though it's clear that she is a believer in BD, she doesn't push her views w/ the vitriol and self-righteousness as other authors do on the subject. Her stories of many of the Oregon characters (and many of them are characters) embracing BD are very descriptive and entertaining. It give a very good inside view of BD as practiced there. I found it interesting that some/many of the growers who practice BD pick and choose what practices they use, are not dogmatic about, and not particularly interested in Demeter-certification for marketing reasons. Some are BD in name only, buying there preps from commercial sources and having no cows & sheep wandering the vnyds.
Anyway....thiis is a highly-recommended book for those interested in BD and the Oregon wine industry and an easy read.
Tom