The topics of energy and the environment are obviously crucial to all of us as evidence is growing that the problems are becoming more severe with the passage of time as our fossil fuels diminish and underdeveloped countries become more energy dependent. This text deals mainly with the core subject matter of energy concepts, resources, and applications. Discussion of the impact of our energy use on the environment is also included. Its goal is to help readers think beyond that "heat comes from the furnace, food comes from the store, water comes from the faucet, and gasoline comes from the filling station."