The fear of Friday the 13th is called “Friggatriskaidekaphobia” and the fear originates from two older superstitions: that 13 is an unlucky number and that Friday is an unlucky day. For the Friday the 13th poster, it was entertainment advertiser Spiros Angelikas who conceived the rough concept. He then hired well-known science fiction illustrator Alex Ebel to paint the iconic poster. The poster became a cultural icon—whose original glow in the dark prints still sell for hundreds of dollars today.
