  An introduction to the physics of electroweak symmetry breaking is given. We
discuss Higgs boson production in $e^+e^-$ and hadronic collisions and survey
search techniques at present and future accelerators. Indirect limits on the
Higgs boson mass from triviality arguments, vacuum stability, and precision
electroweak measurements are presented. An effective Lagrangian, valid when
there is no low mass Higgs boson, is used to discuss the physics of a strongly
interacting electroweak symmetry breaking sector. Finally, the Higgs bosons of
the minimal supersymmetric model are considered, along with the resulting
differences in phenomenology from the Standard Model.
