There are particular characteristics one can have, and particular things one can do, that will make failure in life certain. Why, then, should not the possession of particular opposite characteristics, and the doing of particular opposite things, result as certainly in success, which is the antithesis of failure?That is a logical, common-sense question. The purpose of this book is to answer it convincingly for you. Success can be made certain; not, however, by the mere possession of particular characteristics, nor by just doing particular things.Your success in life can be assured; but only if you supplement your qualifications and make everything you do most effective by using continually, whatever your vocation, the art of salesmanship.