  These lectures are directed at a level suitable for graduate students in
experimental and theoretical High Energy Physics. They are intended to give an
introduction to the theory and phenomenology of quantum chromodynamics (QCD) as
it is used in collider physics applications. The aim is to bring the reader to
a level where informed decisions can be made concerning different approaches
and their uncertainties. The material is divided into four main areas: 1)
fundamentals, 2) perturbative QCD, 3) soft QCD, and 4) Monte Carlo event
generators.
