This book offers an in-depth exploration of the use of communicative tasks in language classrooms, drawing on the principles of Task-Based Language Teaching (TBLT). While grounded in TBLT, the primary focus of the book is on the implementation of tasks in classrooms, rather than on a comprehensive theoretical account of the communicative approach. It examines the use of tasks as pedagogical tools from cognitive, interactional, and instructional perspectives, understanding the realities of language teaching and learning contexts. Based upon this, the book argues that task-based language practices are influenced by an interaction of cognitive, practical, and instructional factors, there-by affecting students’ language performance and development.