This book is an essential reference for managers in various fields to improve the performance of their salespeople. It aims to train them in a gradual manner in the sales technique. The book's author, Frank Salisbury, explains the role of salespeople, the skills they must acquire, and the best way to train them. Moreover, the writer addresses the topic of selling in a professional and organized manner and explains the importance of using body language in training. It also explains the methods that managers should follow to develop and motivate employees. Additionally, the author focuses on developing the performance of sales managers so that they can become coaches in turn. As well as the impact of this performance on the salespeople, and the success of the entire company.