How does Louis L'Amour use imagery in Education of a Wandering Man?

Example of Imagery:

"A writer's brain is like a magician's hat. If you're going to get anything out of it, you have to put something in first."

"One was the so-called Liverpool Kiss, where you catch a man behind his neck and jerk his face down to meet your upcoming skull. Done property it can obliterate, for the time being, a man's features and make him less than anxious to pursue the argument."