Hagiography

[Kit]

the [biography] of a [saint], or (sarcastically) an overly-fawning biography. A [puff-piece].

[Dianne]

[The science] of [holy] [farts].

[Kai]

The writing of the lives of saints.

[Jason Yan]

a very admiring book about someone or a description of someone that represents the person as perfect or much better than they really are, or the activity of writing about someone in this way