Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very helpful, but not a good "only source" for DSST exam.

This study guide was very informational and covered a broad range of topics for the exam. However; I would highly recommend studying each religion mentioned in the guide a little more in detail prior to taking the exam. Overall worth the money, and I would recommend anyone wanting to take this exam review this guide to get an idea of what will be on the exam.