Willem de Rooij: Rather the opposite. It has become a completely mainstream convention. I’m amazed by the flood of art pieces I’ve seen lately that consist of a photograph of a book that the artist finds interesting. Or a book in a showcase. Or sculptures that consist of a bookshelf on the wall with a number of books on it. Or a photo of a bookshelf. Or a photo of a book in a showcase. These books might be interesting, but the photos and sculptures are usually not. I find it so unfair to art that the form of the work gets ignored in that way.