Katei Hoikuen "Naze Nani Book Complete Set of 22 Volumes" Volumes 1 and 2 (Animals) and Volume 5 (Insects) show signs of having been opened (see photos 7, 8, and 9), but the others have been used very little, just flipped through, or are unused. There are no stains, tears, writing, or fading. I used them for reading aloud, and they weren't the kind of picture books that children would read on their own, but I've kept them carefully, so I think they are in generally good condition. I am a private seller, so please forgive any oversights. ・Publisher: Nihon Gakko Tosho Co., Ltd. ・Published July 2005 ・Purchased around 2008