Instruct: Classify a given review as either positive or negative.
Query: Another excellent work by Ambrose

Stephen Ambrose was one of the truly stand-out historians of the 20th Century. His was a very able writer that treated a variety of subjects and events with depth and understanding. I have found his work to always be very interesting, easily understood, and well written. There have been some disparaging criticisms made about his work and some of his statements over the years, but I have not let those things diminish my enjoyment of his work. In fact, whenever I find myself curious about some new facet of American history, I look first to see if Ambrose wrote about it. If you are interested in finding out more about how 'Custer's last stand' came to occur, this is an excellent place to start!