✾Please also check my profile✾ A science book that allows you to learn in a fun quiz format. - Title: A book that thoroughly explains the "why?" of elementary school science in one volume - Author: Daizo Sagawa - ISBN: 978-4-7742-1235-5 - Content: A science book that deepens understanding through quizzes - Target audience: Also useful for junior high school students If you purchase multiple books, we can discount the shipping cost, so please comment before purchasing.