The brief history of time is the best book of science I have ever read.It is written by the great scientist stwphen hawkings.It is abook about balck holes, time, space and some questions that have never been answered. It is from the biggest paperback sellers of the world. It is intruced by carl sagan. And thos book marries a child's wonder to a genius intellect. It journey's into hawking's universe, while marvelling at his mind