Book: "Sophie's World" Japanese hardcover edition, 1 book "Sophie's World" English paperback edition, 1 book A novel by Norwegian author Jostein Gaarder, published in 1991, that introduces philosophical ideas and history to general readers, including children and young adults. It became a worldwide bestseller. Enjoyable in both English and Japanese translations. - Title: SOPHIE'S WORLD - Author: Jostein Gaarder - Title (Japanese): ソフィーの世界 (Sophie's World) - Author (Japanese): ヨースタイン・ゴルデル (Jostein Gaarder) - Language: English and Japanese Thank you for viewing.