Infidel is based on letters from the Lindisfarne Gospels and other similar manuscripts and bibles from the middle ages. These wonderfully idiosyncratic forms, some beautiful, some ugly, are so far away from what we today recognise as legible letters.
The typeface was designed as a reaction to the surge in negative energy directed towards religion following the attacks of September 11th. The deployment of these serene, religious, historic forms and the choice of an intentionally confrontational name was intended to shine a light on the inherent contradictions of religious intolerance.