I concur!!! And well put Deep11. I just started reading it... some pages twice, carful to not miss a thing, so I can absorb as much as possible by spring. My friend and I had a fin debate the other night as he is a set-it-and-forget-it guy. I have sent him the link to buy the book.
It is a must read to satisfy the curiosity and unknowns of the fin but also, as Deep11 pointed out, to connect form and function, history and purpose, and further our obbssesion with this ever challenging sport.