What a genious. Stephen Hawking's books are pretty well-written and quite interesting, especially if you're into science. You can learn a lot from them about the universe in general. Physics is a damn complex subject but since so much of science is built off of it, it's very important. His theories on time are very much worth reading. The universe is totally tripped out. If you're looking for something interesting to read about space/astronomy/physics/time, check out A Brief History of Time,or his newer book, The Universe in a Nutshell. Pretty science-oriented but not too difficult to understand even if you're not especially science-educated.