Improve your english grammar. Theory and practice for beginner, elementary, intermediate, advanced levels

It goes withhout saying that anyone who wants to speak and write English correctly must take a serious stop in the realm of grammar. Therefore, the purpose of this book is to present the grammar of the English language in a systematic way, quite simple for the student to get clear-cut picture of it. The book contains a fair amount of theoretical information about English morphology and syntax and a wide range of exercises of varying degrees of difficulty. I hope that all those who want to worlk hard to raise their level of correct-ness in speaking and writing in English will find this book as a useful tool in achieving their goals.