It is very essential book for every teacher who teaches of English to their students as well as kids. In this book English grammar rules are very effectively explained with relevant examples which would help everyone to understand English well to enlarge their skills of writing correctly and speaking effectively. You can solve any question about English which confuse you about correct English grammar usage. this book also recommend one for competitive exam as well as you can get help this book in your academic course. This is also a unique guide for people who are struggling with understanding grammar as we know it. The topic are very straightforward and helpful for learners.