Each bookseller, participating in the Spui Book Market has to be a member of the Spui Book Market Association. This Association has a number of operational rules. Each bookseller has to comply with these rules. Professional skills, quality and trustworthiness are the heart of the matter.
The Association acts as the legal representative of the booksellers in cases of mutual interest and participates in special events such as the so-called “Night of the Book” in April.