Monte Cook, co-author of D&D 3rd edition, has released a book called The Skeptic’s Guide to Conspiracies. So if you love D&D and believe the moon landing is a hoax, this book may be for you!
For more info on skepticism, logical fallacies and how to construct an argument, I strongly suggest you check out the podcast SGU 5×5. Each is 5 minutes long and offers valuable insights on skepticism 101.