Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent overview

This is an excellent way to review the key themes and ideas of not only this era, but any era. Clear and concise, I found it very helpful. It is weak on biography, but you can't expect them to cover everything. On occasion, I wished they could be more expansive, but it's a tough book to write. They've had to make choices. Unfortunately, on occasion, these were not the choice I would made. Still 4 stars out of five.