The AuthorsThe author Dipl.-Ing. Dr. phil. Heike Hering heads an institute for language support, tutoring and learning therapy in Hannover and was a lecturer at the Universities of Applied Sciences in Hannover and Aachen. She worked for a CAD manufacturer for 9 years and translated manuals to and from German and English for 9 years and was a safety engineer. She then spent 18 years developing e-learning programs for TÜV NORD Akademie, worked on software projects and was a safety engineer.The co-author Prof. Dr.-Ing. Klaus-Geert Heyne was professor at the Rhein-Main University of Applied Sciences in Rüsselsheim in the fields of combustion engines, statics and communication.