Atheists believe in themselves?

[Minimalist]

Do you suggest I read it?

I doubt it you'd appreciate it.

Deep in the Utah desert, Brother Francis of the Albertian Order of Leibowitz has miraculously discovered the relics of the martyr Isaac Leibowitz himself, including the blessed blueprint and the sacred shopping list.

Of course, none of them know what a "blueprint" is, or, for that matter, what a "bagel" is, but it doesn't matter. They are certain that it is a matter of deep theological importance.

The reader gets the joke - they are trying to canonize a Jewish electrical engineer - but the characters never do.

You don't seem as if you much of a sense of humor. I suspect it would be lost on you.