Twenty-three years ago, Sam and Dean Winchester lost their mother to a demonic supernatural force. Following the tragedy, their father set out to teach the boys everything about the paranormal evil that lives in the dark corners of America...and how to kill it. This unique illustrated compilation of all of Sam and Dean's demon-busting knowledge contains detailed descriptions of more than two-dozen otherworldly enemies, from vampires, to ghosts, revenants, reapers, and even bloody clowns. Interwoven with sections of John Winchester's invaluable journal, this is the perfect companion to every thrilling episode - and an essential weapon in the secret war against the hidden creatures of darkness!