Demon Haunted World was a NY Times Bestseller. It says so right on the cover. I recently read this book for the first time (I don't why it took me so long to get around to it). It's great! It's wonderful! Everyone should read it! And, apparently, quite a few people did. So, why are there still so many idiots out there buying into all kinds of bunk? That's my pre-coffee thought for this morning. Discuss. Now, if you'll excuse me I have to go get my caffeine hit, but I'll leave you with a negative review from the book's Amazon page:I can certainly believe that some people would call this their Bible, since it's just as dogmatic as your everyday King James version. But with this book Sagan preaches Capitalism, Atheism, and the New World Order. Basically, everyone will be a cog in the machine of scientific "progress." UFO's, bigfoot, and crop circles are all hallucinations and hoaxes according to Dr. Sagan. The one thing he decides to neglect, though, are the findings of the Air Force's Project Blue Book, which catalogued 701 cases of unidentified flying objects up to 1968. How convenient that he left that little fact out of his book. He also overlooks a plethora of information collected by agencies such as MUFON (Mutual UFO Network), NICAP (National Investigations Committee on Aerial Phenomena), and CUFOS (Center for UFO Studies). For some reason he doesn't mention any of this in his book. He must take us all to be dumb, inbred, crud breeders. To him we must be too dumb to tell a UFO from swamp gas or bigfoot from a guy in a costume. The list of bad claims made in this book is too long for me to go into, but I would like to say that I still dearly admire Carl Sagan. I really liked his book Cosmos, in which he stuck to the facts and didn't try to debunk everything. Overall I just found this book to be hypocritical hogwash. HE IGNORED SOME OF THE FACTS, THUS HE BROKE HIS OWN RULES!
That sigline over "there" that said "READ this book! Make your KIDS read it!" but now says "Really, dontcha think you ought to READ this book? You might learn something, even though Pastor won't "explain" it to you... "?
And anyone who would cite MUFON and CUFOS as credible sources of anything besides fertilizer...... 
Round and Round it Goes...