Jack Rosebro has been teaching professional automotive technicians how to service, diagnose, and repair hybrid and electric vehicles for over twenty years. He has taught for the Society of Automotive Engineers as well as Toyota Motor North America. Rosebro runs a training center for Earthling Automotive, a full-service hybrid and EV shop in San Francisco, where he teaches hands-on courses on hybrid, EV, and electrical diagnostics to technicians across the country.