National Diet Library
After the conclusion of World War II, censored books of this period resided in the National Diet Library as "Banned Books held under Possession by the National Diet Library", but some books were confiscated by American forces during the Occupation of Japan. The National Diet Library has worked with the American Library of Congress to digitize this content, including material that would have been considered obscene back in the day, but are not by today's standards (e.g. Kiyoshi Sakai's () ). Much of this content is free to view online if copyright laws have allowed for it to be available as such. Pages that had been censored from these books have also been re-released to the public under these archives. However, because the relatively recent commencement of public access to these libraries, there have been few in-depth analyses of the works. With the efforts of librarians such as Noritada Ōtaki (), endeavors to encourage studies of these books and further extensions of access to the public have been made. However, of the roughly 11,000 books banned during this period, the National Diet Library only holds about 7,000. The rest of the books exist only in personal collections or are lost works.