'An Iron Will' by Orison Swett Marden, is a motivating-though quick-read. Written before 'Think and Grow Rich' by Napoleon Hill, it is easy to imagine that Marden's book inspired and provided the framework for the Napoleon Hill book. 'An Iron Will' isn't the kind of book you read-it's the kind of book you study. Written for those who are searching for a higher power to guide their lives, 'An Iron Will' stresses the importance of the human will in all endeavors. This book is all about harnessing the power of your self will to work for you instead of against you. This work delineates the steps one needs to take to create discipline and willpower to achieve one's goals. 'An Iron Will' is an absolute must read for anyone who wants to achieve the pinnacle of success in their personal and professional lives. 
Famous works of the author Orison Swett Marden: Pushing to the Front, Success Magazine, An Iron Will, He Can Who Thinks He Can.