Of course you can! We prefer to answer simple questions over the phone, for example about the availability of specific collections or documents.
But you can also ask these questions through the contact form. For all questions we presume that you have taken notice of the information provided on our website.
Questions by email or letter will sometimes be answered by referring to the reading room or to other organisations. In general it goes without saying that we will not always be able to provide a suitable answer for every question. Please also read our Terms of service.