  Supersymmetry, a new symmetry that relates bosons and fermions in particle
physics, still escapes observation. Search for supersymmetry is one of the main
aims of the Large Hadron Collider. The other possible manifestation of
supersymmetry is the Dark Matter in the Universe. The present lectures contain
a brief introduction to supersymmetry in particle physics. The main notions of
supersymmetry are introduced. The supersymmetric extension of the Standard
Model -- the Minimal Supersymmetric Standard Model -- is considered in more
detail. Phenomenological features of the Minimal Supersymmetric Standard Model
as well as possible experimental signatures of supersymmetry at the Large
Hadron Collider are described. The present limits on supersymmetric particles
are presented and the allowed region of parameter space of the MSSM is shown.
