Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Lucid, Simple, Profound

Essential reading for the Christian living in a postmodern world. Halfway through, it's painfully obvious that relativism is idiotic and self-contradictory... but it's still good reading. It's also impactful to read how relativism proponents respond to the authors' arguments. If you ever expect you'll talk to regular people about Christianity, you need the information, languaging, and strategies suggested in this book.