... once.■ ■ Secrets of Closing Sales by Charles B. Roth and Roy Alexander A summary of the original text.The authors of Secrets of Closing Sales, Charles Roth and Roy Alexander, have distilled the ... arrangement with Learning Network Direct, Inc., from Secrets of Closing Sales: Sixth Edition by Charles B. Roth and Roy Alexander. Copyright â 1993 by Prentice-Hall,Inc.825 75th Street, Suite C, ... late Charles B. Roth personally trained more than 30,000 salespeople in the art of closing more sales. In the field and as a sales counselor, he helped develop the selling programs of dozens of...