Types of outdoor advertising include billboards, bus benches, interiors and exteriors of buses, taxis and business vehicles, and signage posted on the exterior of your own brick-and-mortar location.

There are really two aspects to operating this type of business: marketing and the people who will be the actual human billboards. In terms of the people who will work as the human billboards ...

Yet instead of approaching this marketing medium as a big cash grab, some decent Don Draper-types decided to embrace billboards as blank canvases, a fateful choice that left city streets ...

"We have received of exploitation for human trafficking where vulnerable women are in these cars," said Stephan.