Death by Black Hole: And Other Cosmic Quandaries

This was a fun book–it's a really approachable take on some of the fun as well as some more serious topics in astronomy and astrophysics. It doesn't assume any prior knowledge of physics yet still manages to get into enough detail to stretch your knowledge a little.

There also is some interesting commentary on the way astrophysics is covered in the press and in politics as well as how to approach learning astrophysics. I enjoyed it.