salesmanship
— Noun
– English
~ skill in selling; skill in persuading people to buy; "he read a book on salesmanship but it didn't help"
salesperson
— Noun
– English
~ a person employed to represent a business and to sell its merchandise (as to customers in a store or to customers who are visited)
salesroom
— Noun
– English
~ an area where merchandise (such as cars) can be displayed; "in Britain a showroom is called a salesroom"