A book by the phenomonal Stephen Hawking. This book gives an introduction to the complex workings of the universe in words that the layman can understand. A gargantuan step in educating people about theoretical physics.
The book is divided into the following sections:

  1. Our Picture of the Universe
  2. Space and Time
  3. The Expanding Universe
  4. The Uncertainty Principle
  5. Elementary Particles and the Forces of Nature
  6. Black Holes
  7. Black Holes Ain't So Black
  8. The Origin and Fate of the Universe
  9. The Arrow of Time
  10. Conclusion

The book's persisting copyright is the only obstacle preventing me from noding it in its entirety. It comes highly recommended.