Boek The Psychology of Selling (Engels)

Double and triple your sales-in any market. The purpose of this book is to give you a series of ideas, methods, strategies, and techniques that you can use immediately to make more sales, faster and easier than ever before. It’s a promise of prosperity that sales guru Brian Tracy has seen fulfilled again and again.

More sales people have become millionaires as a result of listening to and applying his ideas than from any other sales training process ever developed.