Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Trim the fat.

This book goes over the writrers gear list of his commercially bought products that he cut the labels off of and shortened the straps to lighten the load. Most of the info in this book is stated on the internet in better wording and a more practical manner. Much of this book is just his opinion of how things might work because he never enven tried the products. From my understanding he doesn't even have any serious experience under his belt. He has hiked several hundred miles but never completed any long distance trails. His biggest achievement is that he attempted the PCT. Save your money and do some online research or if you want to buy a book, find a copy of Ray Jardine's "Beyound Backpacking."