"Western trout fly-tying manual" by Jack Dennis, 1980. Was kind of a Bible of "how to" back then. internet has 20 times the information now, but there's just something about the old black and white photos, and paper that the internet just can't reproduce. Every time I go to toss it out, it goes back on the shelf. Have not looked at it in years!
Nostalgia: Something the Internet will never have.