Alexander Theodore Callinicos (born 24 July 1950) is a Rhodesian-born British political theorist and activist. An adherent of Trotskyism, he is a member of the Central Committee of the Socialist Workers Party (SWP) and serves as its International Secretary. Between 2009 and 2020 he was the editor of International Socialism, the SWP's theoretical journal, and has published a number of books. Source: Wikipedia (en)