Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Helpful "How To" Guide

This book has been extremely helpful in teaching me how to invest safely in tax lien certificates. I've been earning 18% annual interest in Florida and couldn't be happier with the results. The author does a great job of getting you started and answering your questions (even if you don't know anything about investing in tax lien certificates). Many other states around the country offer high rates of return to invest in liens against real property. If you want to learn how to make your money work for you...i recommend buying this book.