1. Teacher Unionism in America: Lessons from the Past for Defending and Deepening Democracy;Shelton;American Educator,2018
2. Nichols, John . “Karen Lewis Built a Proudly Militant Movement for Public Education.” The Nation, February 15, 2021.
3. Social Movement Unionism or Social Justice Unionism? Disentangling Theoretical Confusion within the Global Labor Movement;Scipes;Class, Race and Corporate Power,2014
4. Social Justice Teacher Activism: A Key to Union Vitality;Rottmann;Our Schools/Our Selves,2013