Einstein & the Evolution of Quantum Physics: From a Light Beam to Deep Cosmos, a popular science state-of-the-art by illustrious polymath and public intellectual Dev Arastu Panchariya propounds a unique storytelling flair and captivating journey through the centuries-old pursuit to decipher the fundamental nature of reality. Unleash the stunning journey from the ancient Greek philosophers' musing on the indivisible atom, origin of light and the Universe, to the revolutionary scientific ideas of 19th-century physicists originated with Albert Einstein & beyond. Explore the scientific voyage that led to the birth of quantum theory, an indispensable idea that construed grand cosmic design and delve into key impressions of historic scientific figures that shaped this profound understanding of Universe. Entangle with the trailblazing expansion of cosmos with Quantum & Particle Cosmology and Quantum Field Theories, which provide a more sophisticated framework for understanding from the large scaled universe to subtle world of particle interactions. Encounter a glimpse into the possible future with Quantum World, exploring potential applications and the ongoing quest to reconcile quantum theoretic structures with general relativity, leading to the Theory of Everything.