The Handbook of Mental Magic

This is the book that started it all for me. I found it in my local public library when I was in elementary school and immediately fell in love with mentalism. I even hypnotized a girl in my class, which blew my mind. Later in life, in my 30s, I decided to dive back into mentalism, and the first thing I did was order a used copy of this book. Apparently many magicians and mentalists were upset when it first came out, because it was a mass market book and gave away a lot of well-guarded secrets.