A dictionary of problem points in the English language as encountered by learners and their teachers. Information in over 600 entries with new features in this edition making it easier for users to find their way around the book. Entries have been modified to make them clearer and more effective in solving readers’ problems, and the explanations and examples are based on current corpus research. Students can usePractical English Usage alongside the new Practical English Usage Diagnostic Tests to check their knowledge of key aspects of English grammar and identify the topics they need to study or revise.