Abstract: The Higgs boson, the so-called God particle, was observed at the Large Hadron Collider (LHC) of CERN on July 4, 2012. This observation caused a sensation in the world. In this introduction to the Higgs boson we shall describe: (1) the fundamental constituents of matter and the role played by the Higgs boson, (2) its nature and mechanism, (3) its production, decay and observation at the LHC, (4) the natural framework for the Higgs boson, i.e., low energy supersymmetry.