Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Greatest Fly Tying Book

I have 4 tying books and have been interested in tying for years but as soon as I recieved this book I became addicted.I also have the CD-Rom of the same title and both are more helpful than any information I have gotten anywhere else.If you want to help someone start tying flies or already know how and just want to get better this is a must buy.The CD-Rom also has movies on every technique you would ever possibly need. Buy this book!!!!!