Instruct: Classify a given review into positive or negative sentiment.
Query: the book that created the genre

read it because you like westerns, want to understand the origin of the genre, or just plain like a good book. There are many reviews here that do a better job of discussing Wister's creation, I just wanted to throw in my 'two cents worth' and encourage people who might have an interest to try it. It's wonderful, entertaining, and a fast read.