Explore the evolution and impact of quasars in this comprehensive 11-hour lecture series from the California Institute of Technology. Delve into the discovery of quasars, their luminosity functions, and high-redshift evolution. Examine the relationship between quasars and X-ray backgrounds, black hole demographics, and galaxy co-evolution. Investigate quasar masses, broad emission lines, outflows, and jet formation. Learn about blazars, obscured quasars, and their role in probing the intergalactic medium. Gain insights into gravitational forces and 3-space curvature through thought experiments. Conclude with public lectures on black holes, the fate of the universe, and the multiverse, presented by renowned experts in the field.