Modern advertising was created with the techniques introduced with tobacco advertising in the 1920s, most significantly with the campaigns of Edward Bernays, considered the founder of modern, "Madison Avenue" advertising.
In 2015, the world spent an estimate of US$592.43 billion on advertising.[5] Its projected distribution for 2017 is 40.4% on TV, 33.3% on digital, 9% on newspapers, 6.9% on magazines, 5.8% on outdoor and 4.3% on radio.
Internationally, the largest ("big four") advertising conglomerates are Interpublic, Omnicom, Publicis, and WPP