This is the definitive account of Trotskyism in the UK.

Introduction, Chapter 1 Theoretical Perspectives, Chapter 2 Trotsky and the Origins of Trotskyism, Chapter 3 Development of the Trotskyist Movement in Britain, Part 1: 1950-1985, Chapter 4 Development of the Trotskyist Movement in Britain, Part 2: 1985-2017, Chapter 5 Doctrine, Orthodoxy and Sectarianism, Chapter 6 Party Recruitment, Chapter 7 Party Electoral Performance, Chapter 8 Organizational Resources, Chapter 9 Working in the Trade Unions, Chapter 10 Social Movements and Front Organizations, Chapter 11 The Proliferation of Trotskyist Internationals, Chapter 12 The Achievements, Limitations and Weaknesses of Trotskyism, Appendix 1 British Trotskyist Organizations 1950-2017, Appendix 2 Sources for Trotskyist Organizational Membership Figures, Appendix 3 Trotskyist Organizations in Western Europe 2017, Appendix 4 Defunct Trotskyist Internationals 1970-2017, Appendix 5 List of Interviewees, Bibliography

John Kelly teaches at the Department of Management, Birkbeck College, University of London. He has published widely on trade unions and the labour movement.