A rare book from 1917 that teaches the principles of successful salesmanship. The principles taught in this book worked then, they still work today, and they will continue to work, because they are based on human nature and psychology.
A rare book from 1917 that teaches the principles of successful salesmanship. The principles taught in this book worked then, they still work today, and they will continue to work, because they are based on human nature and psychology.