I came across this guy on YouTube and he was SO good at explaining tricky stuff. I watched a few more of his mini clips, then decided I needed a book. This one was the one most recommended by buyers and I have to say I find it totally fascinating.So much great info in it (easy to understand, and without jargon) that I find myself writing down numerous 'facts' just I can remember them. eg: * Over 200 planets not in our solar system have so far been discovered. * If the human eye could 'see' microwave energy, we would be able to spot police radar gun beams. * The moon doesn't exactly orbit the Earth - They both rotate around a point 1000 miles below the Earth's surface. Incidentally, black holes are just a tiny aspect of the book. Most of it is about new and updated information on astronomy and universe origins, etc. I really like this book. It's as interesting and easy to read as Bill Bryson's superb 'Short History of Nearly Everything.'