I've only flipped through it a few times since purchasing it. There is some tearing on the cover and some age-related wear, but the inside is clean with no stains or sun damage. Please consider this, understanding that it has been stored at home. - Title: Why? New Encyclopedia of Science - Supervision: Yasufumi Kawamura - Publisher: Juken Kenkyusha - Price: 2700 yen - Number of pages: 351 pages