I was stuck in beautiful Eugene, Oregon and ended up in a Borders book store. There were, surprisingly, a scant dozen or so books of fishing. Surprising because Eugene sets amongst several excellent fishing venues within minutes of town.
I came upon a nice book by John Barr entitled Barr Flies. It is a glossy, large sized book with great visuals and a bit spendy. I liked the S-B-S tutorials on several nymph patterns and I bought the book. I couldn’t fish, so I perused the Barr book and planned my tying to incorporate some of Barr’s patterns.
Another excellent book is Rick Hafele’s Nymph Fishing Rivers & Streams. Hafele provides a gazillion interesting facts about insects that trout eat and how to fish them.