Dutch Von Ehrenfried has worked in both the spaceflight and aviation fields for about 25 years. He was a NASA Flight Controller in Mission Control for many Mercury, Gemini and Apollo Missions. Dutch also worked on some of the Apollo Lunar Experiment Packages from an operations point of view as well as experiments that went into Skylab from an Earth Resources Program perspective. He later worked in the NASA Headquarters Space Station Task Force and the Program Office as a contractor for about 10 years, and the FAA Aviation Safety Office for a year. In recent years, he has written several books in the Springer-Praxis series.