Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: very entertaining
Review: There are many very interesting problems in this book. The author presents erroneous proofs of false results and they key is to find the error in the proof. Some are very easy and some are quite difficult. I give it 4 stars because some of the errors in the proofs are really superficial and are either obvious or uninteresting. It is worth a look, though.
