May 2013 – Periods of sun and moonlight for all days of 2013 (pen plot).
March 2013 – Series of four plotted posters about Tarawa which is part of the island nation Kiribati. With an maximum altitude of about 3 meters above sea level this could be the first nation which inhabitants have to be relocated in the next 50 years due to rising sea levels and pollution of drinking water. more
March 2010 – Visualisation of gravity fields on earth drawn in CMYK on a pen plotter.
November 2008 – Standard kilogram (surface deviation multiplied 1.000.000 times) drawn in CMYK on a pen plotter.