  In these lectures I briefly review the Higgs mechanism of spontaneous
symmetry breaking and focus on the most relevant aspects of the phenomenology
of the Standard Model and of the Minimal Supersymmetric Standard Model Higgs
bosons at both hadron and lepton colliders. Some emphasis is put on the
perturbative calculation of both Higgs boson branching ratios and production
cross sections, including the most important radiative corrections.
