Secret info books

The types of books that I like to read are books that let you in on secret information.  Books that basically reveal little secrets about everyday life that give you a huge advantage over people who haven't read them.  Unfortunately I only know of a few books.

The Game by Neil Strauss
The Mystery Method by Mystery
Emergency: This book will save your life by Neil Strauss
Never be lied to again by David J. Lieberman
Body Language by Allan Pease

Does anyone know other books that are like those?

>>4
SIR seeing as most of /book/ doesn't pay for books but gets them off the internet how or we fools?