Its major components are grammar, vocabulary and reading.
The material in it is so designed that it ensures steady progress towards mastery of English. While it may be used in a classroom situation to teach grammar, vocabulary and reading comprehension, it is basically a self-study book. It also covers a lot of material which is relevant to Cambridge Proficiency Examinations.
This book is intended for intermediate and advanced learners of English who are preparing for examinations in English, such as English proficiency examinations given by Turkish universities, YDS (Foreign Language Test), IELTS and the TOEFL.