Introduction --;A crash course on Weyl spinors --;New notation for the components of Weyl spinors --;The physics of Weyl, Majorana, and Dirac spinors --;Building the simplest supersymmetric lagrangian --;The supersymmetric charges and their algebra --;Applications of the SUSY algebra --;Adding interactions: the Wess-Zumino model --;Some explicit calculations --;Supersymmetric gauge theories --;Superspace formalism --;Left-chiral superfields --;Supersymmetric gauge field theories in the superfield approach --;SUSY breaking --;Introduction to the minimal supersymmetric standard model --;Some phenomenological implications of the MSSM.