In every discussion on the role that language plays in our lives, every orator - from prominent politicians and corporate figures to linguists, educational experts, and others - concedes that language is important in all spheres of life. Language is both personal and introspective, as well as public and communal. Without it, we would not be able to communicate and articulate our thoughts and feelings to ourselves, to those in our inner circles, and to those in the world at large. Without it, we would not be able to establish partnerships and collaborations, and to unite peoples of diverse backgrounds and intrinsic values. Without it, too, we would not be able to learn new discoveries and gain new knowledge. The nurturing of a language learning culture is of the utmost importance to ensure that language teaching and learning supports the development of individuals, societies, nations, and populations. Language researchers, educators, and practitioners need to ensure that their learners are empowered to remain relevant. They need to produce critical and analytical thinkers, and successful language users in listening, speaking, reading, and writing.The collection of chapters in this volume addresses language teaching and learning dilemmas and draws attention to the challenges researchers have overcome and those they continue to face. The book chapters here reflect the transcendence by language teaching and learning of ordinary boundaries, especially with the advent of the digital revolution, and provide new perspectives, pedagogies, and approaches that help shape ethical, responsible, and sustainable policies. Readers of this volume, whether language practitioners, students, researchers, policy- and decision-makers, concerned educationists, or any interested individual, will gain new insights and experiences as they explore new identities, new instructional media for interactive teaching and learning and new modes of meaning in diverse local and global contexts.