Stock photography is the supply of photographs, that are often licensed for specific uses, by a photographer through a stock photo library’s/ agency, which has been around since around the 1920s.
That has various types of photography including traditional & microstock photography just to name a few, most photo stock agencies will only accept
So why not try your hand at being a Photographers sitter or model for free & have your fifteen minutes of fame, or would you just like to have a go?