Jos Jamar has been in his profession for almost twenty-five years. In all that time he's held to one clear course, following a limited number of well-chosen artists. This is not a limitation in his view; rather the reverse: "You have to make choices if you want to be good at your job as an art dealer. You have to keep up with artists and specialize in their work. That opens up new perspectives. It's an approach my clients share." Jos Jamar has worked on several catalogues raisonnés, including those of Marcel Broodthaers and Panamarenko.