Why OOH should be a key factor in a marketing plan:
Outdoor advertising offers significant variety and forms:

Billboards

Backlit Posters

Bulletins

Mall Posters

Transit Shelters

Digital Bulletins

Full-Motion Video Displays

Street-Level Advertising

Wall Banners & Murals

Mobile Billboards

Stair Risers

Ceiling & Floor Decals

Station Domination

Airport display

Washrooms

Elevator