Catching the themes in 'Things Not Seen' felt like watching someone go through all the awkward, strange parts of growing up while the world refuses to notice. I found the invisibility gimmick does heavy lifting as a metaphor: it amplifies isolation, the way teens worry they’re being overlooked or judged, and how
identity can feel slippery. The protagonist’s practical experiments and the family's scramble to understand
him also bring in curiosity and responsibility — that sense that solving a mystery is less about clever tricks and more about being honest with the people who care.
The book also dives into empathy in a thoughtful way. The friendship with the blind girl reframes what it means to be seen; she challenges assumptions about reliance, competence, and dignity. Privacy and
Ethics show up, too — what do you do when you can observe others without being observed? For teens that’s a sharp question about boundaries and respect.
Overall, 'Things Not Seen' mixes coming-of-age nerves with gentle moral questions, and it left me feeling quietly hopeful about how awkward honesty can turn into real connection.