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Description
A stunning hardcover collector’s edition of Ali Hazelwood’s instant New York Times bestseller and TikTok sensation featuring: • A shimmering, revamped cover • Endpapers with all new art from Lilith Saur featuring Olive and Adam • STEM stenciled spredges • A sunny, foil stamped case • Fun additional chapter heading doodles throughout, and... • A brand new bonus chapter featuring THAT KISS from Adam’s point of view 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. Read more
Publisher : Berkley
Publication date : June 10, 2025
Edition : Special Edition
Language : English
Print length : 416 pages
ISBN-10 : 0593953819
ISBN-13 : 15
Item Weight : 1.4 pounds
Dimensions : 5.82 x 1.14 x 8.57 inches
Best Sellers Rank: #286 in Books (See Top 100 in Books) #1 in Feel-Good Fiction #1 in Workplace Romance #1 in Contemporary Romance (Books)
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Top Amazon Reviews
Format: Hardcover
⭐️⭐️⭐️⭐️⭐️ I absolutely LOVED this book!! I can definitely see why everyone loves The Love Hypothesis! Olive and Adam were just perfect together, and I loved watching their relationship grow from the fake dating arrangement into something real. Their chemistry, banter, and all the little moments between them had me hooked! Adam’s grumpy personality was honestly one of my favorite things 😂 The fact that he’s this intimidating, grumpy professor to everyone else but Olive slowly gets to see the softer side of him?? I loved it. And I especially loved that his grumpiness was something Olive actually found endearing rather than something she was constantly trying to change about him. I also LOVED the STEM aspect of this book! As someone who works in STEM and loves a good STEM romance, I really enjoyed having the science and academic world woven into the story without it taking away from the romance. Olive and Adam are both so passionate about their work, and I loved that their love for science was something they shared and respected in each other. The whole grumpy/sunshine + fake dating combination worked SO well for me, and Olive was such a fun character to follow. This book was funny, sweet, nerdy, romantic, and had me completely invested in their HEA. I seriously flew through this one—I could NOT put it down! 😂 Definitely a 5-star read for me, and I totally understand the hype now! 💕
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Reviewed in the United States on September 7, 2026 by Nikki
Format: Paperback
The Love Hypothesis is a charming romance that perfectly blends humor, heart, and memorable characters. The chemistry between the main characters feels natural, and the story is filled with witty dialogue and sweet moments that keep you smiling. The writing is engaging, and the pacing makes it hard to put the book down. The academic setting adds a unique touch, making the story even more enjoyable. Overall, it's a delightful read that I highly recommend to anyone who enjoys contemporary romance with plenty of humor and heart.
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Reviewed in the United States on July 15, 2026 by JOSE R.
Format: Audiobook
**My favorite of all her books** I absolutely loved *The Love Hypothesis*. Out of all of her books, this one is still my favorite. The chemistry between the characters, the humor, and the slow-burn romance all worked so well for me. It was fun, easy to read, and had just the right amount of awkwardness and heart. Definitely one of those books I’d happily reread and recommend to anyone who enjoys a cute, smart romance.
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Reviewed in the United States on August 28, 2026 by CherylRR
Format: Paperback
I first read this book over a year ago, and I’ve revisited it at least three times now. The Love Hypothesis is a contemporary romance set in the world of academia and told from the perspective of PhD student Olive Smith. Olive possesses several traits that make her my favorite type of lead character—intelligence, resilience, and understandable flaws. She’s imperfect, but that gives her room to grow during the story. Hazelwood provides us with enough background to understand why Olive fears abandonment and feels a need to lie (she’s an orphan who lost her mother tragically and who struggles with relationships), but the plot never becomes weighed down by exposition. Instead, the story jumps straight into a fake dating arrangement between Olive and the broody but brilliant Professor Adam Carlsen. If you’re looking for popular fake-dating tropes, this has what you need (forced proximity, sharing a room, pining, almost-strangers to friends to lovers). The lead characters share humorous and awkward moments as they try to act like a couple, but they also have heartfelt interactions. While still occasionally “antagonistic and unapproachable,” Adam encourages Olive as she works on her projects and seeks new research opportunities. At the same time, you can see Olive help Adam to address some of his own fears and challenges. They help each other to find their best selves—even if they still have to overcome a few hurdles before they realize what they truly need. Adam’s character growth may seem more subtle than Olive’s, but that goes back to the point of view. We see the story from Olive’s perspective. If you want more insight into Adam’s character, I highly recommend the bonus chapter from Adam’s point of view (available on the author’s website or in the audiobook). The first time I read the story, I went through this bonus chapter at the end, and I believe it added to my experience. Even without this chapter, though, Olive’s story and growth are moving, and knowing the reveals at the end of the book, I would recommend re-reading this one a second time. One area that gives some readers and critics pause regarding this book relates to Olive’s sexuality. Olive struggles to define her sexuality, and I’ve read reviewers who believe she shouldn't have described her sexual uncertainty as having something “wrong” with her in one particular scene. I can understand where these reviewers are coming from, but I can also understand why Olive made these comments. It goes back to the flaws she’s dealing with from the beginning of the book. She lies to others—and to herself—to try to protect herself and not lose people. In the moment in question, she doesn’t want Adam to leave her, but she doesn’t know how to describe her sexual needs. Olive is not yet honest with herself or with Adam (because she’s still learning lessons at this point of the book), and I believe this is why Olive defines herself this way. She still needs to learn there is nothing “wrong” with her, and that people can love her without her telling lies. Content Warnings: There is one scene with explicit sexual content (or two if you count the bonus chapter), and characters discuss sex at other times. There is also an assault, but not within the main pairing. Audiobook: I’ve listened to the audiobook narrated by Callie Dalton with the bonus chapter read by Teddy Hamilton, and I enjoyed listening to the narration at normal speed. Adaptations: A film adaptation of this book is currently in pre-production, so I may update this review once it’s released. Lastly, for the Reylos out there (and I count myself among you), you’ll be able to see parallels between the pairing you love and the leads in this book, and you may have an easier time picturing the cast of characters. However, you don’t have to be a Reylo to enjoy TLH. I highly recommend this book to any fan of romcoms in need of a fake-dating/pining/triumph-of-the-underdog story. If You Liked This Book: You may want to try Hazelwood’s Love on the Brain, which also features an intelligent female lead and fun romance tropes. Happy Reading!
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Reviewed in the United States on May 27, 2024 by Cathleen Kay
Format: Kindle
I have had this book forever, and now that it’s becoming a movie, I figured it was finally time to read it! It started a little slow for me, and it took me a bit to really get invested, but once I did, I really loved it. I adored Olive’s awkward golden retriever energy and watching her try to break through Adam’s grumpy, shell. Their personalities were so opposite, but they worked so well together, and I loved watching their relationship slowly develop. Olive was probably my favorite part of the book. She was awkward, smart, funny, and so easy to root for. And I really loved seeing a romance centered around a woman in STEM! It was such a fun setting and something different from a lot of the romances I usually read. Now I’m SO excited to see the movie adaptation!
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Reviewed in the United States on September 1, 2026 by Kristen
Format: Kindle
A simple read. Maybe a little too long. I still enjoyed it. Excited to see the upcoming movie coming out soon
Reviewed in the United States on September 23, 2026 by Yesenia Gallotto
Format: Kindle
5 -⭐⭐⭐⭐⭐ "I'll just do what Dr. Aslan always says." "And what's that?" "Carry myself with the confidence of a mediocre white man." The Love Hypothesis is an adult contemporary romance following third year Phd student, Olive Smith, as she seeks to convince her best friend that she is happy and not pining after the man said friend is now with. Yet in the case of Olive, her masterful plan to convince her friend of this is to kiss the nearest man beside her and announce they are dating...and it just so happens to be the infamous Adam Carlsen, a young, hot, and intimidating professor who has everyone on edge. For some strange reason though...he agrees to fake dating and the fun ensues. For me this was a delightful romp into a romance that was light and fluffy but still with substance to sink your teeth into. I enjoyed how Olive is this individual focused on the need for evidence to prove things and also the struggles she has as woman seeking to make it in the world of academia. Her doubts and also her successes drew me and had me rooting and commiserating. Adam is a unique character but in many of the traditional ways. He is this aloof figure to many of the other characters for his brutal honestly and inability to be nice about it. Yet with Olive we see him try. I appreciated how much he embraced himself as he was but also recognized that new relationships me new rules. This is a man with a hard exterior but once you crack it...he's is just adorable. This book does contain spice. I would say 2.5 spicy peppers out of 5 spicy peppers. It is a slow burn romance as these characters aren't really expecting something up it hits them upside the head but when it does it was well written and the scientist can be just as passionate and romantic as others. "You're not mediocre, Olive... I wish you could see yourself the way I see you." In terms of world building, I felt it fit the perimeters of a traditional contemporary romance set in the now. I felt the world of academia was well established as it was shown, not told. I enjoyed the balance of exploring this world, having other characters paint it, and how well it gave light to the story. The story takes the delicious trope of fake dating and launches it into the world of academia with conferences, research proposals, and grant applications. It worked for me. I enjoyed the slices of life that were highly gratuitous (cough cough shirtless Adam scene cough cough) but gave a lightness to this book. It made it so the twist caught me off guard but then reminded me of the many issues that stem in male dominated academia sectors, though, it didn't really give light to the opposite side of the issue. I felt things tied themselves up well in the end and I was thoroughly satisfied with my read. If you love rom-coms with all the sexual tension in STEM worlds alongside fake dating, slow burn, and delightful banter you are in for a ride. I am on an Ali Hazelwood kick now!
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Reviewed in the United States on December 14, 2023 by Jill
Format: Paperback
I hadn't read *The Love Hypothesis* since it first came out, and honestly, I forgot how much I loved it. Olive and Adam are still so much fun. The fake dating, the painfully awkward situations, Adam being Adam, and Olive's small but incredibly important circle of people—it all still worked for me years later. But rereading it now, I think I appreciated the friendship and found-family aspects even more than I did the first time. Underneath the rom-com moments, there's so much heart in watching Olive figure out that she doesn't have to make herself smaller or expect less just because she's afraid of losing the people she loves. Funny, comforting, ridiculously readable, and just as charming the second time around. There's a reason this one became such a popular romance.
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Reviewed in the United States on September 19, 2026 by Chels