"Ebony was a success from the start, when the first 25,000 copies sold out immediately. The magazine broke new ground in advertising by showcasing products for the general public as well as those for black consumers. Johnson convinced major advertisers of the importance of the huge black consumer market. He and his staff, using extensive research, proved to advertisers that ads featuring black models got a greater response from readers than those featuring white models. Since Johnson pushed advertisers to use black models to appeal to that market, he was in part responsible for a generation of such models, including Diahann Carroll, Pam Grier, and Lola Falana."
Reade more about the fascinating work of John Harold Johnson onhttp://www.prmuseum.org/black-pr-pioneers/