We may not always notice them, but operating and stationary engineers help keep the world running smoothly. This practical resource explains the importance of operating and stationary engineers and provides descriptions for several jobs within each field, including surveyor, heavy equipment operator, boiler operator, HVACR engineer, and building manager. Readers will learn the educational requirements and job training that are necessary to obtain these jobs, as well as steps they can take right now to get them on the right path. Job outlook and information about trade unions and other resources are also provided.