This is simply a marvelous book. The text and diagrams are very clear and the multitude of photographs, many of them from the Hubble telescope simply stunning. Complicated ideas are explained with great clarity. Anyone, scientist or non-scientist will find this and interesting and exciting book, not only for the insights into the known universe but also some of the exciting ideas about possibilities beyond. Printed on high quality paper, it represents excellent value for money and I have just bought a second copy to give as a present.