This book begins with a detailed section on identifying hatches that will enable anglers to know what they're looking at when they see those bugs on the water. Part II of the book is a complete guide on when and where the major hatches occur. You'll learn about everything from the famous Hex hatch in Michigan to the Hendrickson hatch on the Housatonic. Fuller conveys this detail in charts and in discussion. Finally, Part III is a guide to the flies to use in fishing these hatches-traditional imitations, regional variations, and advice on designing new flies. Every fly angler will benefit from this addition to their arsenal.