Radio Astronomy -- Principles of Synchrotron Emission in an Astrophysical Context -- Non-Thermal Emission from Extragalactic Radio Sources: A High Resolution - Broad Band Approach -- The Observational Properties of Blazars; Selection, Relationships and Unification -- Observing Blazars with VLBI -- Theory of Relativistic Jets: Basic Concepts -- Parsec-Scale Morphologies and Properties of Radio S…