- editor of the German MINDSTORMS blog Die NXTe Ebene
acting editor of the popular NXT blog THE NXT STEP
a Certified Roberta® Teacher
one of the three authors of the EV3 book "Das EV3 Roboter Universum"
author of the DVD "LEGO® MINDSTORMS NXT – Eigene Roboter bauen und programmieren"
one of the developers of leJOS NXJ, the Open Source Java platform for the NXT and
- author of Lemon, the model differ software for LDraw and LDD models
Please visit also my YouTube Channel.