Instruct: Classify Amazon reviews into positive or negative sentiment
Query: One of the best....

The Heartsong of Charging Elk is one of the most engaging and heartfelt books that I have read in a long time. This book allows one to view "Western or European" culture through the lens of Lakota heritage. Once I began this book I did not put it down for the next three days that it took me to finish reading it. I was amazed, horrified and enlighted by the story that was told.