The best part of OOH to us is that Outdoor Advertising reaches its audience as an element of the environment. Unlike newspaper, radio or TV, it doesn't have to be invited to our home. Since it is in the public domain, Outdoor Advertising assuredly reaches its target audience. People can't neither “switch it off” nor "throw it out." People are exposed to it whether they like it or not. In this sense, outdoor advertising truly has a "captured audience." And is one of the best and effective medium of advertisement for every advertiser.