Ronna Briceno

Ronna Briceno

Published: 25 Sep 2023


The National Diet Library is not your average library. It is a treasure trove of knowledge, housing an incredible collection of books and resources that make it a hub for researchers, scholars, and bibliophiles alike. With its rich history and unique role in preserving and promoting Japanese cultural heritage, the National Diet Library holds a special place in the heart of the nation.

In this article, we will take a closer look at 16 extraordinary facts about the National Diet Library that will leave you in awe of this remarkable institution. From its iconic location to its vast collection and groundbreaking initiatives, the National Diet Library is more than just a repository of books – it is a symbol of academic excellence and cultural significance.

Table of Contents

The National Diet Library houses over 41 million items.

The National Diet Library in Japan is one of the largest libraries in the world, boasting a collection of more than 41 million books, periodicals, maps, and other materials. It serves as a vital resource for researchers, scholars, and the general public.

It was established in 1948.

The National Diet Library was officially established on October 1, Its primary purpose is to support the legislative functions of the Japanese Diet, the country’s national parliament. However, the library is also open to the public and provides a wide range of resources for academic study and research.

The library is located in Tokyo.

Situated in the Nagatacho district of Tokyo, the National Diet Library occupies a prominent position near the heart of the city. Its central location makes it easily accessible to visitors from all around Japan.

It houses several special collections.

The National Diet Library is home to a number of special collections, including rare and valuable books, manuscripts, and historical documents. These collections provide unique insights into Japanese history, culture, and literature.

The library has a vast digital collection.

In addition to its extensive physical collection, the National Diet Library also boasts a vast digital collection. Users can access a wide range of electronic resources, including e-books, online journals, and databases, from anywhere in the world.

It serves as the national library of Japan.

As the national library of Japan, the National Diet Library plays a crucial role in preserving the country’s cultural heritage and intellectual history. It collects, catalogs, and preserves a wide variety of materials related to Japan and its people.

The library is open to the public.

While the National Diet Library primarily serves researchers and scholars, it is also open to the general public. Visitors can access its reading rooms, browse the collections, and enjoy the serene atmosphere of this prestigious institution.

It offers various services to its users.

The library provides a range of services to its users, including reference assistance, interlibrary loan, and photocopying facilities. It also offers lectures, exhibitions, and workshops to promote knowledge sharing and cultural enrichment.

Over 1.6 million people visited the library in 2019.

The National Diet Library attracts a significant number of visitors each year. In 2019 alone, over 1.6 million people visited the library, highlighting its importance as a cultural and educational institution in Japan.

The library has a dedicated preservation center.

To ensure the long-term preservation of its valuable collections, the National Diet Library has established a state-of-the-art preservation center. This center employs advanced techniques and technologies to protect and conserve the library’s materials for future generations.

It offers online catalog services.

Users can easily search for and access the library’s vast collection through its online catalog. This convenient feature allows researchers and enthusiasts to find specific materials and navigate through the library’s extensive holdings.

It provides access to rare and valuable materials.

Through its special collections and archives, the National Diet Library offers access to rare and valuable materials that are not easily found elsewhere. These resources contribute to the advancement of knowledge and research in various fields.

The library has international collaborations.

The National Diet Library actively engages in international collaborations and partnerships with other libraries and cultural institutions around the world. These collaborations promote knowledge exchange and facilitate access to global research resources.

It houses a significant collection of foreign materials.

In addition to its extensive collection of Japanese materials, the National Diet Library also houses a significant collection of foreign materials. This diverse collection enables researchers to explore a wide range of subjects and perspectives.

The library offers research support services.

To assist researchers in their scholarly pursuits, the National Diet Library provides various research support services. These services include access to specialized databases, assistance with bibliographic research, and customized reference consultations.

It plays a crucial role in preserving Japan’s publishing history.

By collecting and archiving Japanese publications, the National Diet Library plays a vital role in preserving Japan’s publishing history. It serves as a comprehensive repository of books, periodicals, and other published materials from different periods and genres.


In conclusion, the National Diet Library is a truly extraordinary institution that stands as a testament to the rich cultural heritage of Japan. With its vast collection of books, documents, and digital resources, it serves as a valuable resource for scholars, researchers, and the general public. Not only does it preserve Japan’s written heritage, but it also plays a crucial role in promoting literacy, knowledge, and intellectual growth.

By providing access to a wide range of materials, embracing technological advancements, and offering innovative services, the National Diet Library ensures that it remains relevant in the digital age. With its commitment to collaboration, education, and cultural exchange, it continues to foster a love for learning and appreciation for the written word.


1. What is the National Diet Library?

The National Diet Library is the national library of Japan, established in 1948. It is responsible for collecting, organizing, and preserving the nation’s written and digital materials.

2. How big is the National Diet Library’s collection?

The library boasts a staggering collection that includes millions of books, periodicals, newspapers, maps, manuscripts, and digital resources. It is one of the largest libraries in the world.

3. Who can access the National Diet Library?

The library is open to the public, and anyone can access its resources for research and educational purposes. However, borrowing privileges are limited to the Diet members, researchers, and library affiliates.

4. Can I access the National Diet Library’s collection online?

Yes, the library provides a comprehensive online catalog that allows users to search and access various digital resources, including e-books, journals, and databases.

5. Does the National Diet Library offer any educational programs?

Yes, the library offers educational programs, workshops, and exhibitions to promote literacy, research skills, and cultural awareness. They also organize events and lectures by experts in various fields.

6. How does the National Diet Library preserve its collection?

The library employs various methods to preserve its fragile and valuable materials. These include temperature and humidity control, digitization, conservation treatments, and thorough documentation.

7. Is the National Diet Library only for academic purposes?

No, the library caters to a wide range of users, including students, researchers, professionals, and the general public. It offers resources on a diverse array of subjects, catering to different interests and needs.

8. Can I donate books or materials to the National Diet Library?

Yes, the library accepts donations of books, manuscripts, and other materials that are within its collection scope. However, there are certain guidelines and criteria that need to be met for the acceptance of donated materials.