- Audience-Alienating Premise: A story about an ambiguously autistic child that is not far off from being portrayed as a Creepy Child who lost his father in the September 11 attacks, which was a recent event during the book's publication, and has a B-plot of the life of his grandparents at Nazi Germany. Gee, what's not to love here?
- Jerkass Woobie: Oskar.
- Uncanny Valley: The film adaptation's poster was accused of this, probably because the images of the kid's face and hands seem to have come from separate shots.
YMMV / Extremely Loud & Incredibly Close