Explore the fundamentals of neutrino beams used in accelerator experiments in this comprehensive lecture by Jonathan M Paley. Delve into the intricacies of neutrino physics and learn about the specialized techniques employed to generate and study these elusive particles. Gain insights into the challenges and methodologies involved in creating neutrino beams for scientific research. Discover how these beams contribute to our understanding of neutrino properties, oscillations, and their role in particle physics. This lecture is part of the "Understanding the Universe Through Neutrinos" program organized by the International Centre for Theoretical Sciences, aimed at preparing the next generation of researchers in the field of neutrino physics.