Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Easily the best hiking book on Rocky Mountain National Park

This new book covers every trail in the entire park, and many outside the park boundary. The author actually hiked every trail herself, which is an amazing feat in itself. The book is very well written and is full of beautiful pictures. The author also took all the images. I highly suggest this book for anyone who plans to hike in Rocky. I love the historical tidbits, too.