Leiden University’s regulations are drawn up by various departments, such as Legal Affairs, Human Resources and the department of Health, Safety & Environment.

Leiden University attaches great importance to high-quality, ethical, and independent research. Here you will find more information about review committees, codes of conduct, and policy frameworks, as well as answers to questions such as: When do I need to have my research reviewed? What rules apply…

PhD defence

Within all bachelor’s and master’s programmes, depending on the type of programme, attention is paid to ensuring that academic research is carried out scrupulously. For each programme, this is done in a way that is appropriate for the discipline in question.

Research, Transferable skills

All persons making use of Leiden University buildings and grounds must comply with the general University house rules. These are listed in the Regulations on the Use of University Buildings, Grounds and Other Facilities, and are intended to guarantee order and safety for guests and staff alike.

Workshop

Old Observatory, Sterrenwachtlaan 11, 2311 GW, Leiden

Old Observatory, Sterrenwachtlaan 11, 2311 GW, Leiden

Giving an effective lecture requires not only careful preparation of the content, but also clear structures, visual support and presentation techniques. Some guidelines and tips to keep your lectures engaging and well structured are presented here.

The integrity and reliability of academic research are of fundamental importance to the University. All parties, both within and outside the University, must be able to have confidence that our research is conducted in a scrupulous, fair, verifiable, impartial and independent manner.

Answers to the most common questions about Maileon

The University has national holidays and compulsory closures. National holidays are not deducted from your vacation hours, whereas compulsory closures are.

Diversity, Equity and Inclusion (DEI) can be an aspect of teaching and learning, an outcome to achieve and/or an atmosphere to create. On this page you can find out more information in terms of support and best practices.

PhD defence

Veelgestelde vragen privacy en security

Here you will find guidelines for using devices such as laptops, tablets, and telephones. Whether you are working with a device purchased for you by ISSC or with a device you have purchased privately, it is important that you save your files securely and handle confidential data with care.

Have you experienced or witnessed unacceptable or transgressive behaviour? This page gives information about what you can do yourself and which ‘helplines’ can assist you in this situation.

You can activate and manage your account via Account Services. To make the best use of Account Services, it is important that you set your account properly the first time you use it.

You can find information about making payments to research participants on this page.

Do you want to post an announcement or report any content that needs changing? If so, please contact the web editorial team for your faculty or department.

Fraude en plagiaat

All doctoral dissertations are checked for plagiarism before they are submitted to the doctorate committee.

An ORCID iD is a unique code that identifies you as a scientist in a reliable and consistent way, much like the social security number in a passport. DOI does the same but for a scientific publication instead of a person. DOI and ORCID iD are examples of persistent identifiers.

If your research project involves collecting private or otherwise sensitive data, you must ensure adequate data protection measures are taken. Research must be conducted in accordance with the General Data Protection Regulation (GDPR). In terms of patient data, for instance, when used for research carried…

If you have business contacts, you may at some point be offered a gift: a physical object or a service or advantage. What gifts can you accept without allowing your integrity to be called into question?

Bachelor, Master, Short Course, PhD

The university strives to create a pleasant working environment for everyone. From terms of employment to health and development: here you will find the right information and support.

Think of a clear and consistent directory structure.

Learn how to use Maileon’s editor and how to follow the editorial guidelines.

This academic year, seven (teams of) teachers will receive a Grassroots or Grass shoots grant. Here you can read about their projects.

Start thinking in advance about the selection for long-term preservation.

Scientific integrity is an important element in the PhD trajectory, and is addressed in several different settings.

Leiden University offers researchers extensive facilities and support at every stage of their academic career. Here you will find more information on funding, policy, and publishing, as well as answers to questions such as: How do I arrange a PhD track? Which research grants are available? And what…

If you need a mobile telephone or a mobile subscription or data-only subscription, can apply for it via the helpdesk portal. You can also contact the helpdesk portal if you need to change or cancel a mobile or data-only subscription.

If you plan to make a business trip abroad? Ask your manager for permission in advance.

Research, Transferable skills

On this page we've bundled the best practices which will be presented during the Education Market of 19 June 2025.

The challenge is considerable, but so is the satisfaction when it succeeds: creating complex sugar molecules that play a role in biology.

As an employee of Leiden University, you probably work with or come into contact with personal data. The concept of ‘personal data’ is core to the General Data Protection Regulation (GDPR). If you work with personal data, you must be able to explain clearly, comprehensively and in simple language how…

Employees of departments participating in the Flexible Working pilot can reserve workstations themselves via SharedDesk. You can reserve a workstation in the office up to one week in advance. If you wish to cancel your reservation, please do so at least 24 hours in advance.

In 2022-2023 eight (teams of) teachers received a Grassroots or Grass shoots grant. Here you can read about their projects.

On this page you will find a list of all research and teaching applications that are available for use outside the University network. The list will be updated regularly.

Making use of social media is a good way to meet others or to hear about the latest news and developments. But it also has its downsides: disinformation, trolling, disrespectful comments and even the misuse of (personal) data.

Many people at the Faculty of Humanities engage in their work with great passion and enthusiasm. It is important that employees enjoy their work and create a healthy work balance. Work Balance in Action is intended to keep the theme of ‘work balance’ on the agenda. By engaging in dialogue around this…