Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A piece of crap

At first I was all excited about this book, about something related to Mayan prophecy. However, it turns out to be a mere mumbling by the author about some sort of "research" into the mayan prophecy. It's a total piece of crap. The president shooting himself in front of a teleconference with the Russian president? I can't read it any more. Total waste of my time. The writing style is totally awful as well. Burn and dump the book at once.