The course offers a modern and fundamental understanding to the main concepts and practical applications of Kinetics and Phase Transformations in materials science. The following major topics are discussed within the frame of this course: kinetics of homogenous chemical reactions, thermodynamics of irreversible processes including an introduction to the Onsager postulates, mathematical description of Diffusion in Materials (Fick’s Laws and an atomistic description via random-walk process). Basic concepts of phase transformation theories, including homogeneous and heterogeneous nucleation and growth, spinodal decomposition and Landau theory of phase transformation.