This book is useful for improving various kinds of writing and grammar in Korean, however, it might not be as useful for TOPIK writing section. (I bought the Chinese version, but I have checked the content of the book shown above, it should be the same as the Chinese version.)
Let’s look at the content of the book first. Various forms of writing e.g. greeting card, apology, suggestions, news report, story, poetry are covered. And in every chapter, some useful grammar points are also covered with opportunities for practice.
This is one of the chapters on writing suggestions. First there is a sample writing.
Then there are some useful grammar points for this sort of writing.
In the end, you will be asked to do a letter yourself after the various exercises.
最後，是真正寫一封建議信。I like this book a lot! I found it very useful for writing in daily life.
P.S. Please do not repost this post and the pics somewhere else.