Practical English Usage has sold over 2 million copies worldwide. Now revised and updated for the fourth edition, it answers the questions that teachers and learners ask about English grammar and vocabulary with clear, corpus-informed explanations and examples.

Task-based teaching has created enormous interest among teachers in recent years. But how does the idea of designing tasks (e.g. discussions, problems, games) that encourage learners to use real language work in practice? This book explains the basic principles behind task-based learning and teaching and gives practical examples of how to make it work in different teaching situations.