Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This is the one!

If you are a beginning fly tier, then this is YOUR book. I have read a couple of other fly tying books but this one is like taking lessons. If you follow the progression from front to back, it will take you step by step from beginner to advanced fly tyer. This book also helps the relatively advanced tyer by suggesting solutions to common tying problems as well as "tricks" that help simplify the processes. I was really impressed with this book. It also has a reference section as well as a small article on entimology.