Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Solid Book

This is a solid book about privacy. Using the basics will get you privacy, but it will not be easy. Privacy contains many inconveniences in today digital database world. If you can do everything in this book your privacy will be bulletproof. If you do some of it, you will be better off than most. Of all the books on privacy this is the best despite its flaws.