Dutch designer learned all aspects of printing by working at his father s printing company, De Jong & Co., near Amsterdam. He curated small exhibitions intended to introduce advanced art and graphic design to a wider audience. These exhibitions were held in a small gallery at the printing firm. He designed posters for these exhibitions, which were constructed on a grid of fifteen squares. One or more of these modules always appeared as an element in the design, such as the 1960 exhibition poster for De Man Achter due Vormgeving van de PTT (The Man Behind the Design for the Dutch Post Service). He also edited a square-format journal called Kwadraatblad (Quadrate), which was printed at De Jong and showcased the work of leading artists and designers while demonstrating printing capabilities. And he designed posters and publications for the well-known Kröller-Müller Museum in Otterlo.