A purely scientific affair, this book delves into a huge amount of theoretical physics in order to discuss various aspects of the universe around us: its beginning, end, black holes, and many other things. Hawking's writing serves the purpose well, it is concise and clear, even if it becomes immensely convoluted at times. Though this is not due to any fault of his, it is merely the topic itself that commands such complexity. A brilliant man providing some insight into his thoughts and theories, it is a great but very demanding read.