Alan Watts discusses meditation and meditational techniques.
"To go out of your mind at least once a day is tremendously important, because by going out of your mind, you come to your senses."
It's such a smooth introduction to meditation, really cutting to the essence of it and leaving all purely esoteric associations on the sidelines.
Perfection is when there is nothing more to be left out. This book gets close to it in only 33 pages.