Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A valuable tool

This book provides an insightful and even-handed appraisal of Ronald Reagan and his presidency. The author, a journalist and former White House correspondent for The Washington Post, covered Reagan extensively during his tenure as governor of California, his campaigns for president, and his tenure in the Oval Office. The book describes how Reagan treated the presidency as an opportunity to perform and gave a magnificient performance as president of the United States. The book highlights Reagan's intelligence as an actor, his commitment to his craft, and his success at being presidential.