Light begins at Stonehenge, where crowds cheer a solstice dawn. After tasting myths describing First Light, the story moves on to early philosophers' questions, then through the centuries, from Buddhist temples to Scriptural bible, when light was the soul of the divine. Fighting darkness and anguish, Gothic architects crafted glowing cathedrals while Dante dreamed a "paradise of pure light." Later, following Leonardo's recommendations, Renaissance artists discovered how to catch light on canvas. Throughout the Scientific Revolution, Galileo collected light in his telescope, Descartes measured the rainbow, and Newton utilized prisms to strengthen the science of optics. But even after Newton, light was an enigma. Particle or wave? Did it flow through an unnoticeable "ether"? Through the age of Edison and into the age of lasers, Light exposes how light triggered brand-new marvels-- relativity, quantum electrodynamics, fiber optics, and more. Lasers now carry out daily miracles, light retains its eternal allure. "For the rest of my life," Einstein said, "I will review exactly what light is." Light checks out and commemorates such curiosity.