This course is designed to provide students with a basic knowledge of the key concepts in solid state physics that are relevant to the understanding of electrical, optical, and magnetic properties of materials. This is a self-contained course which includes theoretical descriptions of crystal and electronic structure, lattice dynamics, electrical and optical properties of different materials (metals, semiconductors, dielectrics, magnetic materials and superconductors) based on classical and quantum physics principles. It also emphasizes on the relationship between basic physical principles and macroscopic properties of materials students will encounter in real life.