Allan Johnston is a person who sells things to other people through different kinds of advertisements. You know how sometimes you see commercials on TV or ads on websites? Well, Allan Johnston helps create those ads and tries to make them interesting so people will want to buy the product he is advertising.
He might use pictures, videos or even music to make the ads look cool and fun. Sometimes, he even talks to people in person to convince them to buy the product he is advertising.
Allan Johnston is really good at finding out what people like and what kind of things they want to buy. He works very hard to make the ads look and sound really cool so people will want to buy the products he is advertising.