Delve into the fascinating world of collective motion in this comprehensive lecture on the Physics of Flocking. Join Professor Francesco Ginelli from the University of Insubria, Italy, as he delivers the third class in a series exploring the intricate dynamics of active matter systems. Part of the School on Active Matter organized by ICTP-SAIFR, this 1-hour and 34-minute session offers an in-depth look at the principles governing flocking behavior in nature and artificial systems. Explore theoretical models, mathematical frameworks, and real-world applications of flocking phenomena across various scales and disciplines. Gain valuable insights into the emergent properties of self-organized systems and their relevance to fields such as biology, physics, and robotics.