Quote Originally Posted by c6h6o3 View Post
The book of pyro only tells you about PMK, which in the opinion of many is an inferior formula. Most photographers using pyrogallol or pyrocatechin based developers today use some variant of Sandy King's Pyrocat developers. Everything you need to know is right here. I wouldn't give you 50 pence for the Book of Pyro, much less 50 pounds. Save your money for the chemicals.
It turns out that there are a lot of opinions in photography. Just like not everyone thinks staining developers are best, not all that do think that Pyrocat is best. Different strokes for different folks.