This is mostly a functional manual for bio-dynamic gardeners. A "how to" book. As a gardener, I have found it very useful. My only complaint is that there is no mention of asparagus, the second most important crop in my garden. Is asparagus a leaf,a fruit or a root? I found this omission surprising as there is such a vast array of vegetables mentioned.
Other than the practical application of this book, I found it fascinating to read the studies of isolated planetary light on the individual plant parts. It is sad that the materialistic ideology of today makes people unable to accept these practices in spite of scientific studies. I mentioned bio-dynamics to our local agricultural extension agent who nodded his head approvingly and said that he also believed in the importance of astrological influences, but this was not a practice he could provide information on if he was to keep his job.
I hope for the sake of humanity's future that works such as these will gain wider acceptance.