In 2012 I established Dutch publishing house Toetssteen Boeken dedicated to books about history of Jews and Christianity. I wrote amongst others 'De struikelstenen van Heidelberg' (stumbling blocks of Heidelberg) and 'Kristallnacht en Kamp Westerbork' about the acting of the Dutch government after the night of broken glasses, Together with chief rabbi Jacobs I presented this book to the Dutch Parliament in The Hague.