8/22/2013

Digital signs that time messaging to make sure passersby have a chance to read it three times are likely to have the best chance of resonating with consumers, writes Frank Kenna III, referencing the "Rule of Three" developed at GE in the 1970s. "Once a person has seen a message more than four or five times, any further learning comes to a halt, and the piece is just taking up space," Kenna writes.

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