Spanning Indigenous-language settings in Africa, the Americas, Aotearoa/New Zealand, Australia, Central Asia and the Nordic countries, this book examines the multifaceted efforts of Indigenous peoples to reclaim and sustain their languages. Exploring political, historical and pedagogical issues, the authors foreground Indigenous knowledges and perspectives, highlighting the decolonizing aims of contemporary Indigenous language movements both inside and outside schools. The book calls for expanded discourses on language planning and policy that embrace Indigenous ways of knowing and forefront grassroots language reclamation efforts as a force for social justice and self-determination. It will be of interest to scholars, educators and students in the fields of applied linguistics, Ethnic Studies, Indigenous Studies, Indigenous education, second language learning and teaching, bilingualism and biliteracy, and comparative-international education.