English Grammar in Use by Raymond Murphy is the world’s best-selling grammar reference and practice book for intermediate learners of English (CEFR level B1–B2). Known for its clear explanations and easy-to-follow layout, the book covers essential grammar points with concise theory, examples, and a variety of practice exercises. It is designed for both self-study and classroom use, offering answer keys and additional online resources in recent editions. Trusted by millions of students and teachers worldwide, it remains an indispensable tool for improving accuracy, fluency, and confidence in English.