In the past, selling has always been a default profession for most salespeople. I have seen estimates that say as high as 40 percent of college graduates have me form of sales and marketing. Yet it would be a safe bet that less than 10 percent of them did it as a premeditated choice. Up until the last 10 years, there were very few colleges that even offered sales as a major. Today, there are as many as 52 that do so.