About this website

All members of our staff are involved in the production of this web content. The relevant names are generally quoted on the document or page in question. Should the authorship of any particular document or page not be entirely clear and should you wish to know this, please get in touch with our web master by emailing us at:

Corporate design

Zabriski, Leiden  


Etopia, Amsterdam 


WebinarGeek, Zoetermeer


Onlime Zoekmachinemarketing, Roelofarendsveen


Mieke 't Hart


Sven van der Vlugt

Stefan van Ruijven

Michel ter Wolbeek Fotografie


Tony Parr, Heemstede

PDF files

This website gives access to a number of PDF files. You will need to use Adobe Acrobat Reader in order to view these files. Please visit the Adobe website for a free download.

Photographs and illustrations

All photographs and illustrations on this website are intended as illustrations only. There is not necessarily a direct link between the people shown in the illustrations and the subject matter under discussion.

Privacy guidelines

We respect your right to privacy. We collect only those personal data (such as your address, telephone number or email address) that you yourself give us, whether by email or via the website. General information, for example about the type of browser used by a visitor to the website, the files requested and the visitor’s country of origin, is collected for the sole purpose of improving the website. We use the information you give us to answer your questions or to act on your instructions. Although we do not pass on your data to third parties, we may engage the services of specially authorised third parties to collect, process and act on your personal data.

This website may contain cookies, i.e. data sent to your web browser and stored on your computer, thus enabling our server to ‘recognise’ you if you visit out website again in the future. You can configure your browser so that it does not accept cookies. Our website still works normally, even if cookies are not accepted by the visitor’s browser.

Our website enables you to unsubscribe or alter your data in relation to certain products or services. Also, if you have supplied us with certain personal information, either by email or via the website, and if you would like to delete or amend this information, you can email us at and we will do everything within our powers to comply with your request. We may be obliged – by law or in connection with a judicial or administrative inquiry – to disclose your personal data.

We reserve the right to amend these privacy guidelines at any time. Any amendments will be posted immediately on this website.


Please see the disclaimer on this website (to which reference is made at the bottom of every page).

© 2021 RWV