This book collection was previously owned by Kokichi Kano (1865-1942), a doctor of literature from Odate City, Akita Prefecture. It is a large collection of approximately 108,000 books, containing materials from a wide range of fields, mainly composed of Japanese and Chinese classics. It is also known as "Encyclopedia of Classics" or "Treasure House of Edo Studies".

This is a large collection of over 18,000 books related to Wasan. In addition to a comprehensive collection of major Japanese arithmetic books, the collection also includes many original works and manuscripts by provincial arithmeticians, as well as many materials related to astronomy, calendar calculation and measurement.
Images of materials are currently being prepared.