Where can I find the contact details of a Leiden University employee?

There is a search engine on the website of the University where you can enter the name of an employee. Note that you have to select ‘person’ rather than ‘subject’ in the search screen. Once you click on the employee in question, you will see his or her contact details. The student service desks and departmental secretariats can usually also tell you where you can find a given lecturer or employee.