DO NOT BUY if you want to learn to become a remote viewer; it is not a how-to. I bought this book as an essential guide to remote viewing - as it states within its title; however, it only provides some history about what the CIA, Dept of intel, and US army did with it, and provides a bunch of different examples of people who successfully remote viewed - nothing really essential, in my opinion. The book also covers the various styles of remote viewing, but the purpose of the book is to suck you in to pay for remote viewing classes. I read it all the way through to see if at any point I get in on the juice and learn how to do it, albeit a little bit, but there was just one little experiment you could try and that’s about it. It doesn’t teach you how to remote view - not one bit. This book doesn’t give anything more than what you can find on a simple online search - honestly.