A picture book that teaches the properties of light in an enjoyable way. - Title: The Secrets of Light - Author: Shiro Yamazaki - Genre: Picture Book / Children's Book The book is in very good condition, with no writing, noticeable scratches, or page folds. First printing in 2023, without an obi. Overall, it shows little sign of use. Please be aware that there may be minor soiling or small scratches from being stored on a bookshelf. As a general rule, the book will be wrapped in a plastic bag and shipped in a cardboard envelope, or packaged with cushioning material.