My new book Colorado Guide Flies: Patterns, Rigs, and Advice from the States Best Anglers and Guides is now available.  It features approximately 600 Colorado guide flies with tying recipes and is jam packed with information and tips from the best anglers and guides in Colorado.  This book allows you to peek into the fly boxes of industry professionals that make their living putting people on fish 365 days a year.
This is a great bench-side reference for fly tyers of all abilities.