Supersymmetry - Spectroscopy of the future or of the present

In these lectures, the author hopes to convince you that supersymmetry (SUSY) will soon provide you with a whole new spectroscopy to investigate. Indeed, it may even be that experiments are already starting to reveal this spectroscopy to us. In the first lecture, the motivation for seeing SUSY at relatively low energies (≤1 TeV) is reviewed), and then the structure of supersymmetric gauge theories is introduced. The second lecture is devoted to the construction of realistic models with broken SUSY, and an introduction to the strategy of searches for supersymmetric particles. Finally, Lecture 3 contains a discussion of the various categories of peculiar events recently seen at the CERN Spp-barS Collider, and their possible interpretations. Some of the events with missing transverse momentum may be interpreted as evidence for particle production. If so, attractive theoretical models promise us that many other signs of SUSY should soon be found