Every heat transfer problem has to satisfy the first law of thermodynamics, namely the law of conservation of energy. Before steady-state conditions are reached, every heat transfer problem is in an unsteady state and energies in a control volume and energies coming in and out of a control volume can change with time. These time dependent energy conservation in a control volume refers to a fascinating and challenging part of heat transfer called the unsteady state or transient heat transfer. Case Studies in Transient Heat Transfer With Sensitivities to Governing Variables offers twenty-four transient heat transfer problems in our everyday lives. Some examples are: How do electromagnetic waves coming from our Sun affect our Earth daily and seasonally? How are ablating materials used to capture most of incoming heat loads to protect a spacecraft, its occupants and its instruments, when entering Earth's atmosphere at very high speeds? How does frost damage penetrates a spherical and ripe orange when there is a sudden change in outside temperature at night? How much time does it take to roast one piece beef as rare and another same size piece as well done? Case Studies in Transient Heat Transfer With Sensitivities to Governing Variables will appeal to engineers working in transient heat transfer as well as graduates in mechanical engineering.