What book is The Love Hypothesis (2026) based on?
The Love Hypothesis, her first novel, a standalone, by Ali Hazelwood.
The book gives you Olive's inner monologue, full of science jokes and second thoughts the movie can only hint at.
The book behind The Love Hypothesis
The Love Hypothesis
2021 · her first novel, a standalone · by Ali Hazelwood (paid link)
Should you read it first?
Read it after the movie if you want more of Olive and Adam; the book has room for the slow build the movie compresses into under two hours.
Book vs movie
- Lili Reinhart plays Olive and Tom Bateman plays Adam Carlsen.
- Claire Scanlon directs, from a screenplay by Sarah Rothschild; it premiered on Prime Video on September 23, 2026.
What to read next
Love, Theoretically (2023). Another physics-department romance, and the next Hazelwood book headed to the screen.
Ali Hazelwood's STEM romances in order
- 1The Love Hypothesis 2021Buy(paid link)
- 2Love on the Brain 2022
- 3Love, Theoretically 2023
- 4Bride 2024