Ok here is a great book chock full of expressions and vocabulary
http://book.naver.com/bookdb/book_detai ... id=6218265
It's called 내가 쓰고 싶은 말이 다 있는 영어 일기 표현사전
ISBN 978-89-6000-699-7
This is a book for Koreans to learn and practice English but unlike most books of this kind the Korean is more representative of the way Koreans talk -- not just a translation of the English