The Life of Isaac Newton, by Richard Westfall, addresses the life and work of one of the greatest scientists of all time. Indeed, many consider Isaac Newton to be the greatest scientist of all time, because his work was the culmination of the Scientific Revolution. Westfall covers Newton's unhappy childhood, from which he escaped to Cambridge University where he emerged as a solitary, studious individual. Newton's genius found expression during the anni mirabilis, 1664-1666, when Cambridge was closed due to the plague. During these years, Newton explored a wide range of scientific issues, including mathematical physics, optics, mechanics, and celestial dynamics. He expanded upon Descartes' geometry, to develop the calculus. He conducted experiments with light, concluding that white light is made up of a series of colors. Newton also pursued studies of the movement of objects, following up on the work of Gallileo. Westfall covers Newton's lengthy career at Cambridge, where he devoted his life to his studies, avoiding most relationships and incurring animosity and resentment among many of his fellow scientists, including Robert Hooke. Newton's masterpiece was the Principia, in which he laid out his three laws of motion: inertia; acceleration; and action and reaction. Newton also presented the laws of universal gravitation. Westfall was compelled to write this biography - which is a shortened version of his larger, more technical study - to share the unfolding of the amazing genius who discovered so many of the laws underlying the physical world. This book is worth reading because it provides in an accessible form insights into the discoveries in the fields of mathematics and physics that ushered in the world of modern science.