Who is Joe Weider from Arnold: The Education of a Bodybuilder and what is their importance?

Joe Weider was the American promoter and impresario, who arranged for Arnold to come to America and compete in the IFBB Mr. Universe contest in 1968. When Arnold places second to Frank Zane, Arnold arranges to spend the next year in America, at Weider's expense, in exchange for information on Arnold's training methods and permission to use photographs of him in his magazines. Arnold's seven-year relationship with Joe Weider is longer than anyone else's despite its ups and downs. Arnold admits that Joe Weider is, in part, responsible for his training and subsequent success in business. Weider is responsible for making it possible for Arnold to stay in America and work his way to the top in that environment.