AN AMAZING GUIDE TO SECRETS OF THE UNIVERSE. THERE ARE FACTS AS WELL AS HUNDREDS OF PICTURES AND ILLUSTRATIONS. USED THIS BOOK TO TEACH ON SPACE DETAILS SPECIFIC AREAS SUCH AS EARTH, TELESCOPES, GALAXIES AND GIVES INFORMATION ON EACH OF THEM. GREAT BOOK IF YOU ARE A SPACE FAN OR IF YOU NEED SOME INFORMATION FOR REPORTS OR TEACHING