This is a Ravensburger, Discovery Toys edition from the early 90s, even though it’s undated. The original copyright for the Germany edition was 1964, but I bought it from DT for my classroom use. More than 200 simple science experiments that are entertaining and educational. There is a Garfield name plate inside the cover page for a child to put their name in, which I inserted to cover my name. Other than a small mark on the title page, and an indent on the top binding, the book looks new. Best for K-4, early childhood. See the photos.