There were tensions between UNIA and the NAACP and the latter's supporters accused Garvey of stymieing their efforts at bringing about racial integration in the U.S. Garvey was dismissive of the NAACP leader W. E. B. Du Bois, and in one issue of the "Negro World" called him a "reactionary under pay of white men". Du Bois generally tried to ignore Garvey, regarding him as a demagogue, but at the same time wanted to learn all he could about Garvey's movement. In 1921, Garvey twice reached out to Du Bois, asking him to contribute to UNIA publications, but the offer was rebuffed. Their relationship became acrimonious; in 1923, Du Bois described Garvey as "a little fat black man, ugly but with intelligent eyes and big head". By 1924, Grant suggested, the two hated each other.