I bought this a few years ago when I went to Mr. Denjiro's science show. I opened it and read the book, but I never used the extras. The book has no noticeable damage, but some of the extras have creases. (Photos 4 and 5) Would this be suitable for children interested in science experiments? Children's book for enjoying science experiments. - Title: Denjiro's SCIENCE BOOK - Author: Denjiro Yonemura - ISBN: 978-4-7991-0225-9 - Publisher: Yoshimoto Books - Language: Japanese - Contents: Science experiment related content - Target age: For children