The Obunsha Eitan Target series is the perfect textbook for learning 1200 and 1900 words. It's relatively clean because I've never opened it since I bought it. Please refrain from purchasing if you are sensitive to used items, as it has been stored at home. A red sheet is also included! If you buy them separately: TARGET 1200 is 700 yen TARGET 1900 is 800 yen