In 1962 the Socialist Review Group became the International Socialists (IS) taking the name of their new journal "International Socialism". The journal had briefly appeared in 1958 as a cyclostyled magazine and a second issue, publishing Cliff's essay on Rosa Luxemburg had appeared in 1959, but began regular publication in 1960. The group also began publishing a paper called "Industrial Worker" in 1961 which was renamed "Labour Worker" in 1962. This was replaced by "Socialist Worker", launched in 1968, with Roger Protz being the first editor.