The Skeptic's Dictionary: A Collection of Strange Beliefs, Amusing Deceptions, and Dangerous Delusions

The Skeptic's Dictionary is a website and a book. Each features definitions, arguments, and essays on occult topics ranging from acupuncture to zombies, and provides a lively, commonsense trove of detailed information on things supernatural, paranormal, and pseudoscientific.

Dozens of topics in logic, perception, science, and philosophy are also covered to help explain the appeal and popularity of occult beliefs and to provide a guide for critical thinking.