Pro Wrestling Illustrated (PWI) is an American professional wrestling magazine that was founded in 1979 by publisher Stanley Weston. PWI is headquartered in Blue Bell, Pennsylvania, and published by Kappa Publishing Group. The magazine is the longest published English language wrestling magazine still in production. PWI publishes bi-monthly issues and annual special issues such as their "Almanac and Book of Facts". The magazine recognizes various world championships as legitimate, similar to The Ring in boxing.