Try to resolve the nitrogen problem, go on a regeneration journey or take part in psychological research: discover this and more at the new and improved 3 October University, ‘WetenschapsWarenMarkt’.

Glorious sunshine, dozens of enthusiastic academics and huge numbers of Leiden residents ensured that this year’s special jubilee version of 3 October University was a great success.

Are you curious about how the human skeleton works? Discover this and more on 3 October in Leiden and on 4 October in The Hague.

Festival

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They have known each other since they were small but Rianne and Tom first fell in love when working together at the university. That love culminated in a fairytale wedding amid all the revelry last 3 October.

Visiting address Postal address Witte Singel 27 2311 BG Leiden 071 - 5272814 (General) 071 - 5272857 (Special Collections) Postbus 9501 2300 RA Leiden Courier services Witte Singel 27 2311 BG Leiden Goods deliveries Maliebaan 30 2311 CC Leiden

During the year 2021 and 2022 Leiden University Libraries illuminated the rich past of its university and its students by organising the thematic programme "University and Student life". Several online exhibitions, boekensalons and public lectures were organised around this theme, especially for the…

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.

Leiden University Press publishes academic books and text books journals, primarily in humanities and social and behavioural sciences.

Study support

Leiden University alumni and PhD graduates can continue to use library facilities free of charge.

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

The Friends of Leiden University Libraries Foudation (Stichting Vrienden van de Universitaire Bibliotheken Leiden) is an active society that gladly supports the library. The Foundation contributes to purchases of special works and collections and regularly organises tours, lectures and other activities…

We celebrate Leids Ontzet, the Relief of Leiden, on Monday 3 October. This means that all University buildings in Leiden will be closed. The University buildings on Campus The Hague will be open, but there will be no classes.

From July 2025 to March 2026, various major renovations will take place in the University Library. Both the transparent domes, the skylight between both halls and the installations for air treatment and heating will be replaced. This will allow the University Library to be cooled and heated more sustainably…

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…

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All University staff involved or interested in research data management are invited to join Leiden University Research Data Management Community.

Artificial Intelligence (AI) has introduced itself into everyone's lives. Naturally, Leiden University Libraries also has to address the development of AI. In this subject guide, we will give a short introduction to (Gen)AI and its effects on the university library. This subject guide has also been…

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3 October University has become something of a tradition: a bit of science among the Leidens Ontzet celebrations. During the new and improved edition, the WetenschapsWarenMarkt (Science Market), visitors spoke to researchers about the nitrogen problem, making organs and the city’s connections with A…

The Grand Parade was a festive highlight of the 450th anniversary celebration of 3 October. Students and staff members from Leiden University participated with an impressive float.

Leiden University has awarded its prestigious University Medal to Emeritus Professor Lex van der Eb. As a pioneer in genetics and molecular biology, he received this honour for his services to science and his key role in the development of the Leiden Bio Science Park (LBSP).

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The climate crisis, the return of TB and the digitisation of cultural heritage. The Netherlands and Indonesia face many of the same challenges. A visit by a delegation from Leiden University to Indonesia at the end of June highlighted the benefits of cooperation.

Rembrandt van Rijn is inextricably linked to the city of Leiden. He was born and raised here, went to school in the city, and spent the early years of his career in Leiden, a career that would one day make him one of the greatest painters in Dutch history. There is a similar connection between Rembrandt…

The Dutch universities will give Open Access an extra boost from 2019 by starting a pilot titled ‘You share, we take care’ to make publications available after six months in collaboration with researchers.

Leiden University Libraries (UBL) has been able to acquire four remarkable medical manuscripts partly thanks to support from the Friends of Leiden University Libraries, the Pieter van Foreest Stichting and the Van de Sande Fonds. All four are largely written in Dutch and can be dated between 1595 and…

Seven large reproductions of works by Rembrandt on seven Leiden University buildings reveal the relationship between the painter and the University. Rembrandt van Rijn enrolled in the University in 1620 and painted the portraits of various alumni of the University. In addition, the University Library…

The universities in the Netherlands and Cambridge University Press (CUP) have recently concluded a three-year agreement guaranteeing 100% open access to academic journals. As of June 1, researchers at Dutch universities will be able to publish articles in CUP’s full open access journals via the so-called…

In September 2024, Leiden University Libraries (UBL) will dispose of a collection of dissertations from foreign universities published after 1850. This allows us to make room for new acquisitions.

The universities in the Netherlands and Oxford University Press (OUP) have been unable to able to reach a new agreement for access to academic journals.