1922. This is a book on salesmanship that tells, not how successful selling should be done, but how it is done. Based on careful analysis of the technique and selling experiences of three hundred of the most efficient salesmen in a large American city, it gives only the proven and practical ideas that have actually demonstrated their effectiveness. Это и многое другое вы найдете в книге How to Sell at Retail (Werrett Wallace Charters)