This book aims to introduce teachers of languages to the multifaceted developments that are happening in language education as a result of mass migration, technological advancements and our enhanced understanding of the dynamic process of language acquisition and language use. It presents the overarching framework of plurilingualism and pluriculturalism, European tools, pedagogies and techniques that assist in developing learners’ plurilingual and pluricultural competence and ends with how all this translates into practice through the design of educational scenarios. This book is addressed to and written for pre-service, novice and in-service language teachers who want to offer effective and meaningful learning experiences to their learners, taking into account the latest developments in the field of language teaching and language learning. By focusing on providing a deeper understanding of the theoretical, methodological and pedagogical implications of plurilingualism and pluriculturalism, this book can be helpful for language teachers whatever level they may be teaching—elementary (primary) school, secondary school, college or university, or adult education.