Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A most dissapointing book

I have read many Dummies books and this one is the worst one. It is confusing and lacks complete information. It only shows you how to do stuff that most people will never do. I am usually very good at figuring out stuff, but this book baffles me. I am very dissapointed that this is a "for Dummies" title. I expected much better.