Vocabulary is one of the biggest problems when you try to learn a new language. Especially when you take test, unfamiliar words often become obstacles. If you're preparing for the TOPIK(Test Of Proficiency In Korean) II, this book can help you. There are 2500 basic Korean vocabulary list and "fill in the blank" quiz. You know lots of Korean words and want to check it out, then I will be there to help you.