A love letter to the wonders of scientific exploration (else it would not be Carl Sagan!), and at the same time a serious and sympathetic look at pseudoscience and credulity, foreshadowing The Demon-Haunted World. A beautiful read, save for a long point-by-point refutation of another author's absurd work. It's there to make an important point, but it's a bit much.

I sure do wish Sagan was still around. I'm sure he had many more books in him.