This is a set of 5 books from the Doraemon Learning Series that teach proverbs and Japanese industries. Series Title: Doraemon Learning Series * Fun and Easy Japanese Language: Proverbs Dictionary * Fun and Easy Japanese Language: Quick Guide to Keigo (Polite Language) * Fun and Easy Social Studies: Japanese Industries * Fun and Easy Social Studies: Understanding Japanese History 2 * Fun and Easy Math: Applied Problems Solved with Diagrams and Pictures I bought these a long time ago, so they show signs of use. There are no tears or writing inside.