EC had success with its fresh approach and pioneered in forming relationships with its readers through its letters to the editor and its fan organization, the National EC Fan-Addict Club. EC Comics promoted its stable of illustrators, allowing each to sign his art and encouraging them to develop idiosyncratic styles; the company additionally published one-page biographies of them in the comic books. This was in contrast to the industry's common practice, in which credits were often missing, although some artists at other companies, such as the Jack Kirby – Joe Simon team, Jack Cole and Bob Kane had been prominently promoted.