The slasher horror Friday The 13th films are one of my all time favorite film franchises and recently I came across a fantastic blog that delves into the behind-the-scenes and makeup effects used to bring "Jason Voorhees", the burlap bag and later hockey masked killer to life.
The blog is called JasonLivesSinceThe1980s. The content of this blog is very detailed and exceptionally informative. For any fans of the Friday The 13th horror films I highly recommend you check out this blog! Click this link to access it: JasonLivesSinceThe1980s