Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Completely engrossing!

When was the last time you read a thriller that made you compulsively want to discuss it with friends, neighbors, other people in a restaurant?Using a fairly standard thriller genre, Dan Brown packs it so full of fascinating scientific, historical, and art facts that you will constantly be hitting google to look for more information.As in: I've got to see a print of The Last Supper immediately! What kind of airplane is that? I've got to find out more about the Priory of Sion right now! Where's a map of the Louvre?The reader is given a chance to solve the puzzles before the answers are revealed, and the plot line is so compressed (the whole book takes place in under 24 hours) that you never get bogged down.Great for thriller fans or art fans or religous conspirators!