Particle physics is about the fundamental particles in Nature. The course explains how the nucleons are built up of quarks and demonstrates the existence of quarks. The standard model of particle physics describes interactions between the known quarks, leptons and gauge bosons via the three known fundamental forces. The course discusses the standard model and shows how Feynman diagrams can be used to illustrate processes and compute cross sections. Remaining questions of the standard model are examined and theories beyond the standard model are discussed. Additionally, different experimental methods applied in Particle Physics are discussed.