The acronym USP (Unique Selling Proposition) was created by Rosser Reeves, marketing expert in the 1960's. Over time, his concept has been used by others, called different names by different individuals and pretty much has taken on a life of its own. You might know about this concept, but call it a Unique Selling Advantage (USA), Competitive Advantage, Elevator Speech or 30-Second Commercial. Dennis S. Vogel, Internet author, says, "The biggest words for each of them is UNIQUE!" One thing that .