Which word describes best the voice of the excerpt from the absolutely true diary of a part-time indian? realistic formal self-deprecating friendly

The word that would most likely describe the voice of the book 'The Absolutely True Diary of a Part-Time Indian would definitely be self-depreciating. Yes, the story is realistic as it is based on a true story but through out the whole book he is critical of him-self and uses humor to hide emotions and depreciate himself. This can be concluded from the text and the illustrations in the book.

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