Leiden University Libraries hosts materials in hundreds of different languages, including many languages that are written in non-Latin scripts.

A collection consists of items and parts that have been collected by one or more individuals or institutions not responsible for their formation. An archive has been created by one or more individuals or institutions.

The standard loan period for items borrowed at Leiden University Libraries (UBL) is 3 weeks.

What we now call ‘early printed books’ used to be ‘modern’ works in former centuries.

Leiden University Libraries hosts materials in hundreds of different languages, including many languages that are written in non-Latin scripts. Since 2015, all items are catalogued in the original scripts. Therefore, you may use for instance Arabic, Persian, Russian, Hebrew, Japanese, Korean or Chinese…

The archives created by Leiden University and the private archives of Leiden professors are an invaluable source for the history of the university and its functioning. The main sources have been edited (nearly always in Dutch). In addition, several studies have been published, describing the development…

Persistent identifiers ensure that online references remain accessible in the future. The Digital Object Identifier, DOI, can be assigned to digital objects, such as data or publications. By using the DOI you can make sustainable citations of and references to digital sources.

The domain of the post-medieval manuscripts and private archives covers the period from about 1550 to the present. A clear distinction with the medieval manuscripts, however, is difficult to make. There are many undated manuscripts and it is often difficult to date them even within a decade or a quarter…

FeedbackFruits (FbF) is a digital teaching tool accessible via Brightspace. Below you will find how to use FbF in compliance with copyright rules.

Leiden University teachers wishing to stream audiovisual materials during online classes, can book the University Library's media room (ground floor) for this purpose.

Freedom is not something we can take for granted. In its thematic programme ‘Oppression and Freedom’, Leiden University Libraries (UBL) has explored views on identity, relations and the interaction between individuals and groups in the past. The programme included several (online) exhibitions, workshops…

In the course of over four centuries the book collections have been greatly enlarged thanks to the bequests and grants or the purchases from the propriety of scholars or private collectors. Sometimes it concerned collections with thousands of early printed books, such as the purchase of the library…

According to a rough estimate the western manuscripts collections and (private) archives contain some 500,000 letters, of which over 300,000 are catalogued. The letters kept in the University archives are not catalogued; the same holds for most letters kept in the oriental collections. They can be found…

The Asian special collections comprise tens of thousands of rare books, thousands of manuscripts, maps, prints, drawings and photographs, and hundreds of archives.

Leiden researchers are entitled to take part in deals regarding Open Access that have been arranged with a substantial number of publishers.

Leiden University Libraries (UBL) owns over 5 million paper materials. Loanable items can be picked up and returned at the UBL library location of your choice.

The collection Prints, Drawings and Portraits comprises over 100,000 prints, 12,000 drawings and 30,000 portraits.

The collections of drawings consists of around 12,000 drawings of mostly Dutch origin, dating from 1500 until now. The collections is the result of some major purchases, such as the collections of Albertus Welcker (1957) and Adolphus Staring (1969). Almost every Dutch artist is represented with a single…

Leiden University owns extensive collections of portraits. These include around a hundred painted portraits of scholars, librarians and professors and around 30,000 prints of scholars, politicians, rulers, artists, writers and other persons of fame. A smaller partial collection is that of writers, belonging…

Address Academic Historical Museum Academy Building Rapenburg 73 2311 GJ Leiden

Study support

The research suggestions below may be suitable for a bachelor's or master's thesis or can be used as additional source material in ongoing research.

The Western manuscript, archival and letter collections consist of books and documents written in Latin, Greek and Cyrillic script.

Leiden is a knowledge hub, unique in its kind in the Netherlands, for academics, professionals, students and all other people who are specialized or interested in photography. The city and university offer:

Publishing and sharing information has become more accessible. How can you judge whether or not a publication or an internet site is trustworthy? Here you will find some useful leads to help you judge information.

A personal library account and LU-Card is needed to enter the libraries and use on-site facilities.

In short, data management can be defined as the creation, storage, maintenance, disclosure, archiving and sustainable preservation of research data. Increasingly the so called FAIR principles are referred to as a final goal: data should be made 'Findable, Accessible, Interoperable and Re-usable'.

At the moment a lot of discussion surrounds ChatGPT, an advanced chatbot which uses Artificial Intelligence (AI). ChatGPT is based on a Large Language Model (LLM) and has been trained using an enormous amount of text, providing it with knowledge of grammar, semantics and contextual nuances. The program…

Under agreement with the Dutch National Archives (2011), all static archives created by Leiden University are kept as a loan in the University Library. In this way, users can study the history of the university and library in conjunction with other relevant archives, collections and items.

Overview of databases, reference works and websites for Law

The Executive Board has decided that Leiden University will endorse Open Access.

The Middle Eastern Library is located on the ground floor of the new Herta Mohr Building at Witte Singel.

Overview of databases, reference works and websites for research in Middle Eastern Studies

The photographs collection of Leiden University Librarie (UBL) contains specimens of almost all photographic processes from the history of the medium, rare objects and artistic highlights. Together, they shed light on the history of photography as a technique, a means of scientific, historic and personal…

Open Researcher and Contributor Identifier (ORCID) is an international system for the persistent identification of academic authors.

Use LUCRIS and Scholarly Publications to share, promote, and store your publications.

In this FAQ we try to answer a selection of the most important questions on research data management that we compiled over the last 5 years.

The Chinese Special Collections are part of the Asian Library. Items can be consulted at the Special Collections Reading Room.

Some books have particular features such as design, unique illustrations and descriptive annotations. These features can be of interest for specific research.

As soon as your thesis has been approved, you will be asked to upload your final version to the Student Repository. The Repository is an online archive for Leiden University theses. You can send all questions regarding your upload to the repository to your Education administration office.

A number of tools and services are available to help you keep up to date with the latest developments in your subject field.

Tips for using film and music in your presentation or essay

Text and Data Mining (TDM) is increasingly applied in various academic disciplines to extract useful information from unstructured textual data using computational methods.