The goal of this seminar is to understand better waves in magnetized plasmas. We will begin with a review of basic electromagnetism and then move into the treatment of plasma waves with the cold plasma and MHD models. If time permits, we will continue forward and consider kinetic theory effects. The ultimate goal is to better understand several important phenomena which play a major role in astrophysical and practical applications, specifically wave absorption, mode conversion, and cyclotron damping. We will focus on physical aspects, however, some rigorous mathematical aspects may be discussed.