Instruct: Classify Amazon reviews into positive or negative sentiment
Query: somewhat useful.

I expected a little more from this book. A router is a very important tool in woodshop and it requires careful attention to safe operation, proper setup, and very precise measuring for accuracy. This book does not go into depth in this area. I didn't feel that the techniques were properly explained. The book was ok and I'm sure some people, especially beginners might find it useful.