Book excerpt: This is a complete guide to fishing and tying terrestrial insect imitations. It discusses terrestrials family-by-family, focusing on their importance to the angler, and presenting advice on using them effectively. It also explains how fly fishers can catch trout by making the most of their attraction to terrestrials, and where to find tying materials. Instructions for tying many imitations are given, using both synthetic and natural materials, with eight new patterns.