Some of the first real pro magic books I ever purchased and my first introduction to real slight of hand, were Lewis Ganson's Routined Manipulation, Expert At The Card Table by S.W. Erdnase, and Dai Vernon's Inner Secrets of Card Magic. In the 1960's or 1970's I saw a magician on TV clasp his fingers, show the front and back of his hands empty and then proceed to produce cards. Needless to say I was flabbergasted. I had to know how he did that. I wrote to a magic company and they provided me the name of the book, it was Dai Vernon's Inner Secrets of Card Magic (I think it was Bob Hummer's routine). Before getting these "REAL" magic books I was reading stuff like 84 Card Tricks You Can Do.