Chris Harman is the editor of International Socialism, a former editor of Socialist Worker and a member of the Central Committee of the Socialist Workers Party.

From a working class background, Harman attended the London School of Economics where he joined the International Socialists. He was instrumental in publishing the magazine of the LSE Socialist Society The Agitator and was a leading member of the IS by 1968. He was involved in the Vietnam Solidarity Campaign and outraged many leftists when at a meeting in the Conway Hall he denounced Ho Chi Minh for murdering the leader of the Vietnamese Trotskyist movement, Ta Thu Tau , in 1945 after crushing the workers rising of that year in Saigon.

His main role in the IS and then from 1978 the SWP was as a theoretician and he has produced many books and articles on a wide variety of topics. Almost all his writing has appeared in the publications of the IS and SWP or has been published by related publishing houses. He first became editor of Socialist Worker in the late 1970s and returned to the role after a break in the 1980s until 2004.

He is the author of numerous books and articles including;

• The Class Struggles in Eastern Europe
• A People's History of the World
• The Economics Of The Madhouse
• Explaining The Crisis
• The Lost Revolution-Germany 1918-23
• How Marxism Works
• The Fire Last Time: 1968 And After
• Marxism And History
• Days Of Hope
• The Prophet And The Proletariat
• The Changing Working Class: Essays on Class Structure Today (with Alex Callinicos)
• Russia: How the Revolution Was Lost
• In The Heat of the Struggle: 25 Years of Socialist Worker (editor)
• Bureaucracy and Revolution in Eastern Europe
• Class Struggles in Eastern Europe 1945-83
• Eastern Europe: The Storm Breaks
• Gramsci Versus Reformism
• Days of Hope: The General Strike of 1926 (with Duncan Hallas)
• Party and Class
• The Revolutionary Paper
• Word is Gay: Socialists and the Fight Against Gay Oppression
• Why Labour Fails