Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Best Book on Ancient Egypt Ever Written

"Secrets of the Great Pyramid" by Peter Tompkins is my all around fovorite book. I have been reading this book for the past 30 years and its still a delight to open its pages for another discovery. The most valuable part of this book is the appendix written by Livio Catullo Stecchini. Stecchini is perhaps the most educated author I have ever read and he writes with facts and figures - not assumptions as do many other authors on this subject. "Secrets of the Great Pyramid" is an enigma that gradually reveals itself, supplying all the pieces of the puzzle on this sacred journey - but you will have to dig deep in the end!