If you’re looking to get into a Fallout state of mind before we play the game, allow me to recommend A Canticle for Leibowitz by Walter M. Miller Jr.
It’s a novel about a Catholic monastery roughly 700 years after the Flame Deluge. The monks have a quiet, contemplative medieval life, illuminating hand-copied manuscripts of 20th century math and science textbooks, although they have long since forgotten the fundamentals needed to understand the texts. They live in fear of demons written of hundreds of years ago called Fallouts.
Tim Cain cites the book as an inspiration for Fallout. Here’s a small excerpt:
A spiritu fornicationis, Domine, libera nos.
From the lightning and the tempest, o Lord, deliver us.
…
From the place of ground zero, o Lord, deliver us.
From the rain of the cobalt, o Lord, deliver us.
From the rain of the strontium, o Lord, deliver us.
From the fall of the cesium, o Lord deliver us.