Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Half and Half
Review: This book really did it. It put me to sleep so fast. The reason why I gave it 2 stars was because the first few chapters did give a quite good introduction on cryptography. I don't know how I got fool into buying this book. Oh yes, it was because of the 5-stars rating I saw on others' comments.
