Please make a reservation via the webform (「閉架資料予約フォーム」) at least one day in advance if you want to use materials such as rare books, old books.
They are only available from 10AM to 3PM on Weekdays.
User's Guide for Visitors
There may be additional procedures required in order to read or copy some sources, so you should have your university library or the nearest municipal library contact Nichibunken in advance.
>> User's Guide for Visitors
In order to view sources designated as rare or semi-rare books, please fill out the "Application Form for Browsing Rare Books" to apply prior to your visit.
It may take seven to ten days to obtain permission, so keep that in mind when you make your request.