Katsura Library has opened the Nagao collection, which was donated by Professor Emeritus Makoto Nagao.
The Nagao collection holds about 5,000 books on informatics, linguistics, philosophy, calligraphy, and so on.

Please refer to the following for details of the Nagao collection. (Japanese only)
https://www.t.kyoto-u.ac.jp/lib/ja/katsura_library/collections/nagao