A hallmark of the International Socialist Tradition, whose leading organization was the Socialist Workers’ Party in Britain, was its commitment to socialism from below and to the centrality of working-class self-emancipation at a time when Stalinism, Maoism, and even some variants of Trotskyism, had veered from this commitment. Yet today, that tradition is considerably weakened internationally. Ahmed Shawki examines the contributions of this tradition to the socialist movement, both in the US and abroad, evaluating both its strengths and weaknesses.