In 1915 Emanuel Julius was invited to move to Girard and write for "Appeal to Reason", then the largest socialist periodical in the country. Julius married Marcet Haldeman in 1916. At the suggestion of Marcet's aunt, Jane Addams of Hull House, both assumed the surname Haldeman-Julius. In 1919, Emanuel became co-owner and editor of "Appeal to Reason" and began printing the first of the small paperback books in Girard which soon became the foundation for his Little Blue Books series. His vision was to make good literature available to the masses at a cheap price. At the end of nine years, the small project had become a gigantic publishing venture; Emanuel Haldeman-Julius became known as "the Henry Ford of literature". Following World War II, the FBI under J. Edgar Hoover viewed the Little Blue Books' inclusion of such subjects as socialism, atheism, and frank treatment of sexuality as a threat; Haldeman-Julius was added to the enemies list. This caused a rapid decline in the number of bookstores carrying the Little Blue Books.