Scientists may not be as exciting as they were in the early 20th century. In an era where the world is waffling in its commitment to natural sciences, it is reassuring to hear Stephen Hawking defend this esoteric field for its own sake. As the title implies, ‘A Brief History of Time’ is a succinct review of this challenging task, providing the reader with a summary of key cosmological ideas including multidimensional space, the inflationary universe, and the cosmic fates that explain the construction and potential destruction of the universe. He discusses two major theories, relativity, and quantum physics, that modern scientists use to describe the universe. Finally, he talks about the search for a unifying theory that coherently explains everything in the universe.