Astrophysics can be heavy reading. Fortunately, these books are all engaging, and even funny at times. So if you don't have an expanse of knowledge on the subject, and even if you do, there's no need to feel daunted by our reading list as there's something suitable for everyone here...
I have been recently re-reading two books by Dr. Carl Sagan on the evolution of humans, and the role of modern science in society (Demon Haunted World, and the Dragons of Eden, both worthy reading to those who have not done so!) and it seems that we have strayed a bit in the past...