Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Who needs this?

The only person who would ever need this book is a total newbie who's never picked up an electric guitar in their life and got some pedals along with a guitar/amp starter kit for christmas. Sophomoric would be way too generous; the book is written for simpletons. Half an hour experimenting with whatever stomp boxes you have on hand would be far more instructive that reading this book.