A core list of flies that will catch trout anywhere, in every season, this collection includes the most important patterns in a wide range of styles, from dry flies to streamers. The tying steps for each pattern are illustrated in step-by-step photos with detailed captions, followed by photos and recipes for the six most useful variations--217 patterns in all. Each chapter features a description of the insect the pattern imitates as well as expert information on how and when to fish the fly.