In A Brief History of Time, Stephen Hawking presents contemporary cosmology to the lay readers, describing the concepts of quantum mechanics and general relativity without the equations for probability waves or differential geometry. Even the student of physics may find the account interesting, and grasps the theories intuitively rather than mathematically.
The Big Bang Theory and the inflationary universe form the basis for exploring the frontiers of cosmology. And the search for a quantum theory of general relativity becomes the cosmologists’ goal to understand black holes, which will give insight into the nanoseconds during the Big Bang. Perhaps in understanding that period of time, physicists may unify the forces of nature and formulate The Theory of Everything.
Though we can find these cosmological concepts and theories in books and journals, Hawking presents them without all the mathematical hocus-pocus, so common men and women will understand the ideas behind the equations. Sure, there are some scientific jargons but they don’t overwhelm. And though the ideas have evolved since the book was published, the concepts provide the basis for understanding the challenges confronting cosmologists. I recommend the book for those who want a basic understanding of cosmology minus the differential equations and singularity points.