In addition to reading science fiction, I love reading non-fiction books about the field. This includes various histories of the field (such as Mike Ashley's histories of the sf magazines), biographies (Isaac Asimov, Robert Heinlein, and others), interviews (Charles Platt's Dreammakers) and overview/reviews books like Neil Barron's seminal work-Anatomy of Wonder.
Is Barron's book worth tracking down? Let's take a look and see.