This book aspires to provide a reflective and descriptive account of innovative research works and practices related to promoting and accommodating cultural and linguistic diversity in education. Within a diverse world, classrooms with diversity are not considered to be a major challenge, especially when researchers and teachers are making a joint attempt to accommodate this diversity of skills, competences, knowledge, expertise, feeling, languages, and cultures. This book has been developed to cover various aspects of approaching and supporting multilingual and multicultural classrooms through a selection of chapters, which shed light onto experiences in the field. The contributors of this book report and reflect on practices that raise students' multilingual and inter/multicultural awareness, communication and interaction. They discuss challenges of various contexts and provide perspectives from different angles on the above-mentioned issues underlining the need for continuous research, implementation and reflection in modern diverse classrooms. Teachers and researchers internationally seem to have placed this diversity at the center of their attention and this book is an example of best practices and pieces of research towards supporting such classrooms which have been seen as a crossroad for languages and cultures.