Children's Science ★ Science Book This is a science book for children that explains the ecology and mysterious lives of parasites, but it can also be considered a specialized book, as it features a wide variety of species. - Title: The Strange World of Parasites - Author: Katsuji Saito - Supervision: Meguro Parasitological Museum - Publisher: Seibundo Shinkosha The cover is present, but there are holes, tears, and sticker residue. On page 30 of the main text, there are stains from something spilled. All of these are as shown in photos 4 to 8.