Instruct: Classify Amazon reviews into positive or negative sentiment
Query: one of the worst books I've ever read

I hate when someone gives me a book as a gift. Then, I feel obligated to read someone else's choice. When life is so short, and there are so many books this feels like a terrible burden. I usually refuse to do so on principal.Out of boredom, I broke this rule last week and read this book which I got for Christmas. I will never break this rule again.It was gripping in an irritating sort of way. There were many times it was suspenseful and I couldn't put it down, but the many climaxes were very disappointing. And the characters were HORRIBLE. I didn't like any of them and frankly, I hoped that bad things would happen to each of them.