Single volume, in a paper case. The book itself has a vinyl cover. Due to aging, the case and cover show some signs of wear, but the contents are in relatively clean condition. Please understand that this is a used book before purchasing. Title: Mizuki Shigeru's Encyclopedia of the Other World Author: Shigeru Mizuki Publisher: Tokyo-do Shuppan June 10, 1990 Sixth Edition Price: 2200 yen (excluding tax) Single volume, in a paper case