William Walker Atkinson 
Psychology of Salesmanship 

The amazingly prolific thinker and writer William Walker Atkinson made his mark in a staggering variety of different fields, ranging from Hindu theology to the "New Thought" movement that eventually gave rise to abidingly popular concepts such as the Law of Attraction. In this timeless volume, he applies his insightful ideas to the field of salesmanship. It’s a must-read for anyone whose livelihood relies on their skill of persuasion.