Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very Good For Clarifying Structure, A Guide For More Study

This simple book is excellent as an introduction to American civics. It begins with the development of our nation's constitution and progresses from there. While some of the areas don't go into enough detail (the Bill of Rights, for example) they do allow the reader to discern structure in our government and identify specific areas for further study.