Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not much help

This book is more of a "service" business book than a "cleaning" business book. Gives general info about cleaning, general info about who to target and how to advertise to your target market. I read through it once and never picked it up again. I was looking for a book I could come back to over and over again for references and information...this is not the book for that. Check out "Clean Up The Profits" by Sam Rodman if you're looking to start office cleaning...it's decent.