The USPHS recruiting campaign was aimed at reaching the maximum number of potential applicants in the shortest period of time. The primary target was the high-school graduate but college women were also recruited. The selling point was free education in a proud profession while providing an essential service to the country. Appeals to join the CNC reached more than 7,000,000 newspaper and magazine readers, and millions of radio listeners and movie patrons around the country. Pleas were made in speeches, through billboards, and in leaflets. U.S. corporations donated $13,000,000 worth of advertising space and technical services to the program in one year. Nearly every type of media source advertised for the CNC.