Which books are told in the most interesting / creative/ mind bending ways? How does it add to the book overall?
My all time favourite is Ella Minnow Pea where the book is a series of letters. The characters have to think of more inventive ways to write their letters as an increasing number of letters are outlawed as the book progresses.
Honourable mentions include:
Maribou Stork Nightmares where the narrator is trying to suppress his dark past by allowing himself to slip into hallucinations of a whacky south African safari adventure.
Flowers for Algernon where the narrator becomes more articulate by taking part in a scientific experiment.
Máirtín Ó Cadhain’s Cré na Cille (sometimes translated as “The Dirty Dust” or “Graveyard Clay”) is narrated in a really interesting way. Without spoiling it, the (mostly) main protagonist is speaking from their grave to others who are also in theirs. Newly dead are added as the story continues. The dead aren’t mobile, so it’s voices/ thoughts only, as I recall (which takes some getting used to) but the dialogue is very rich, and often hilarious.