Available for individual sale. This is a set of 4 books: a collection of practice questions for the Common Test Ethics (the red book on the far right and the one in the front are Ethics, Politics, and Economics only) and Kageyama's Common Test Ethics. You can master Ethics with just these books. Regarding writing: * The book on the far left has writing only on the first practice test, and the other pages are unused. * The book on the far right has writing only on the "Ethics" sections of all the questions. * The red book in the front has writing only on the "Ethics" sections of the first two practice tests (2023, 2022). * There is no writing in the Kageyama book in the front. Each book comes with answer explanations and a separate booklet. Please use them to help with your exam studies.