Although a Carl Sagan fan since I was a student, I never heard of this book. I learned about it by hearing it mentioned on a radio show on NPR. I am now about halfway through it, and I can't believe that I never read this book before. A required read for anyone interested in science, and more specifically, our place as humans in terms of the larger cosmos. Well-written, insightful, and containing page after page of beautiful connections and observations.