The edited book delves into promoting multilingualism in TESOL classrooms. It discusses classroom approaches across the Global South and North through the lens of power and how the construction of power influences what is and is not learned in a classroom. It explores power negotiation, identity construction, and language policy in three sections. The chapters address language revitalization, mother-tongue literacy, and building the social capital of languages other than English. The book challenges pre-service and in-service teachers and researchers to take a broader look at learner support, classroom impact, learning objectives, assessment and policy goals, and de-constructing power in ways that allow more equitable re-constructing. This book provides valuable insights for researchers, teacher educators, and trainers engaged in multiculturalism studies, multilingual TESOL, language education, and decolonization.