They made Ron Popeil look like a piker. Guthy-Renker, one of the largest and most respected direct marketing companies in the world today marked its 25th anniversary, commemorating a quarter of a century of creating, marketing and distributing trusted products that transform, inspire, entertain, and enrich millions of customers' lives worldwide. Co-founders and Co-chairmen Bill Guthy and Greg Renker created Guthy-Renker in 1988, setting the gold standard in infomercial marketing. Combining...