Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Why so popular?

I just finished reading Left Behind and while I think the whole premise could have made a very interesting story I think this was just plain boring. I couldn't help but feel that the authors were trying to justify why certain religious groups feel the need to knock on strangers' doors and try to preach to them. I also felt that there might have been a touch of anti-semitism in this book and even though I'm a Catholic, I couldn't help feeling a little annoyed at this sentiment. In conclusion, this could have been an excellent book, but maybe it needs to cut down on the preaching and delve a little more into character development.