This collection examines a diverse range of approaches to multilingualism in teacher education programmes across Europe and North America. The authors investigate how pre-service teachers are being prepared to work in multilingual contexts and discuss the key features of current pre-service teacher education initiatives that address the increasing linguistic and cultural diversity evident in classrooms in their respective countries. The focus is not only on migrant-background learners but includes students from Indigenous, autochthonous and heritage language backgrounds, and speakers of minoritised regional varieties. The chapters contextualise, both historically and ideologically, the specific initiatives and measures taken in the participating countries. They also reveal the complexity of each educational context and the role that history, language policies and institutional and programmatic priorities play in the development and implementation of a multilingual focus in teacher education. In exploring how pre-service teachers are being prepared to work in multilingual contexts, the authors take a critical view of how multilingualism itself is conceptualised within and across contexts. The book highlights the valuable impact that explicit instruction on theories of multilingualism, pedagogies in multilingual classrooms and lived realities of multilingual children can have on the beliefs and practices of pre-service teachers.