Surfaces and interfaces: Types of interfaces. Liquid surfaces: Microscopic picture of interfaces; curved interfaces; Young -Laplace and Kelvin equations; capillary condensation; surface tension; measuring surface tension. Solid-liquid interfaces: Contact angle and wetting, Gibbs adsorption isotherm. Solid surfaces: External and internal surfaces; Bulk and surface structure of FCC, BCC and HCP metals; Notation of surface structures; Relaxation and reconstruction of surfaces; homogeneous and heter