Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't give up too soon.

This book defeats a lot of people which is a shame because it is truly deserving of all its praise. It took me awhile, in fact several years to get going on it. The first couple of tries I was like what huh? I don't get it. Finally it made sense to me and I've now read it several times and will read it many more. So If you are having trouble getting going on this book try again and again and eventually you will get it, it will be worth it when that happens.