This is a set of two books, ② and ④, from Daiso's "K暮らしのミニ情報ブックレットシリーズ." These are dictionaries that provide detailed explanations of Japanese proverbs and common phrases. They are compact and convenient for looking up necessary information in daily life, and easy to carry around. - Title: Proverbs Dictionary - Title: Common Phrases Dictionary - Content: Explanations of Japanese proverbs and phrases - How to Use: Explanations on how to use the dictionaries - Price: 280 yen + tax x 2 books Thank you for looking.