BD, the manifesto is the greatest comprehensive book ever written on learning to flyfish. I still have the copy I bought in 1978 when I bought my first modern fly rod.
Hah! You beat me by a year. Mine dates from 1979 when I first fished with flies (unsuccessfully) on our honeymoon.
Sheridan Anderson? Isn't that the cartoonist who contributed graphics to Royal Robbins Rockcraft books?
The very same. Also a friend of Richard Brautigan if my sources and my memory are correct.
For anyone fishing in California I also highly recommend Ralph Cutter's Sierra Trout Guide as much more than a regional guidebook: It contains a lot of Cutter's wisdom on the habits of trout and the nature of their habitat.