It should be noted 'pillow book' refers most specifically to a work by Sei Shonagon, a court lady of the Heian Era.The Pillow Book of Sei Shonagon(Makura no soshi) was written sometime in the late 900s-early 1000s and is a collection of notes and personal thoughts about Heian court life, a diary. To my knowledge 'pillow book' is not commonly used as a general term and does not typically describe an erotic work.This glaring error as well as the others previous reviewers have mentioned should call into question the veracity of this book. If one simply wants to look at Japanese erotic (of questionable authenticity) then this book will suffice. If one is looking for accurate depictions of geisha or true antique Japanese erotica one would be advised to look elsewhere.