The Love Hypothesis

· The Love Hypothesis Book 1 · Sold by Penguin
520 reviews
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384
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About this ebook

The Instant New York Times Bestseller and TikTok Sensation!

When a fake relationship between scientists meets the irresistible force of attraction, it throws one woman's carefully calculated theories on love into chaos.


As a third-year Ph.D. candidate, Olive Smith doesn't believe in lasting romantic relationships—but her best friend does, and that's what got her into this situation. Convincing Anh that Olive is dating and well on her way to a happily ever after was always going to take more than hand-wavy Jedi mind tricks: Scientists require proof. So, like any self-respecting biologist, Olive panics and kisses the first man she sees.

That man is none other than Adam Carlsen, a young hotshot professor—and well-known ass. Which is why Olive is positively floored when Stanford's reigning lab tyrant agrees to keep her charade a secret and be her fake boyfriend. But when a big science conference goes haywire, putting Olive's career on the Bunsen burner, Adam surprises her again with his unyielding support and even more unyielding...six-pack abs.

Suddenly their little experiment feels dangerously close to combustion. And Olive discovers that the only thing more complicated than a hypothesis on love is putting her own heart under the microscope.

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The Instant New York Times Bestseller and TikTok Sensation! When a fake relationship between scientists meets the irresistible force of attraction, it throws one woman's carefully calculated theories on love into chaos. As a third-year Ph.D. candidate, Olive Smith doesn't believe in lasting rom...

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Ratings and reviews

520 reviews
nick
December 21, 2025
I love Olive, she is such a cool interesting person, I love dip into world of Uni. science & research, it’s fun to get a glimpse into a world u know nothing about. BUT I don’t like Adam! He is a jerk, arguing that his abrasive approach to critiquing Grad students is for the best! I don’t agree! Love of any subject is one of most important things to bring good wk (see Lane Hutson) so critiquing & encouraging will have better results, since it will encourage students love of the subject!
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Peggy Nibte
August 2, 2026
Ik heb enorm genoten van the love hypothesis. Het verhaal is vlot geschreven, zit vol humor en leest heerlijk weg. De chemie tussen de hoofdpersonen is geloofwaardig en de grappige dialogen zorgden ervoor dat ik regelmatig moest lachen. Het is een romantisch verhaal met leuke, herkenbare momenten en precies genoeg diepgang om je betrokken te houden. Een echte aanrader!
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Nicole Dunton
June 5, 2023
For the most part, I really enjoyed this book very much. It was quirky and addictive. The main character reminded me so much about somebody I care about. I could go on. The problem is that there was a trope that I can't stand in it that almost made me put the book down. The person I was buddy reading actually did. I can't say I blame him. I was stubborn though and wanted to see it through to the very end. I'm glad I did. (More on blog: Star's Books & Tea)
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About the author

Ali Hazelwood is the #1 New York Times bestselling author of Love, Theoretically and The Love Hypothesis, as well as a writer of peer-reviewed articles about brain science, in which no one makes out and the ever after is not always happy. Originally from Italy, she lived in Germany and Japan before moving to the US to pursue a PhD in neuroscience. When Ali is not at work, she can be found crocheting, eating cake pops, or watching sci-fi movies with her three feline overlords (and her slightly-less-feline husband).
Ali Hazelwood is the #1 New York Times bestselling author of Love, Theoretically and The Love Hypothesis, as well as a writer of peer-reviewed articles about brain science, in which no one makes out and the ever after is not always happy. Originally from Italy, she lived in Germany and Japan befo...

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