Practical English Usage is a highly respected reference guide that explains the most common problems and confusing points in English grammar, vocabulary, and usage. Written in clear, accessible language, the book provides detailed explanations and examples covering grammar rules, word choice, style, and idiomatic expressions in both British and American English. It is designed for teachers, advanced learners, and anyone who wants to use English more accurately and confidently. Known for its clarity and reliability, this book has become an essential resource in classrooms and for self-study worldwide.