It happens every year when the weather starts to turn. That specific, salt-air nostalgia kicks in. If you grew up reading Jenny Han, you know exactly what I’m talking about. The Summer I Turned Pretty book series isn't just a trilogy about a girl getting pretty and two brothers fighting over her. Honestly, that’s the surface-level take that drives me crazy. It’s actually a pretty brutal exploration of grief, the end of childhood, and how we outgrow the people we love most.
Cousins Beach feels real. For many of us, it’s more real than the actual beaches we visited as kids. We spent three books—The Summer I Turned Pretty, It’s Not Summer Without You, and We’ll Always Have Summer—watching Isabel "Belly" Conklin navigate the messy transition from being "the kid" to being a woman with agency.
But let’s be real for a second. The books are different from the show. Very different. If you only know the Prime Video version, you’re missing the internal monologue that makes Belly both relatable and, at times, incredibly frustrating.
The Cousins Beach Magic and Why It Works
Jenny Han has this specific gift. She captures the feeling of a "last time" before you even know it’s the last time. In the first book, everything is tinted with that golden-hour glow. Belly has been going to the Fisher house her whole life. She’s the tagalong. The annoying younger sister of Steven. The girl the Fisher boys, Conrad and Jeremiah, mostly ignored or teased.
Then she turns fifteen. Everything shifts.
It’s not just that she got "pretty" in a physical sense. It’s that she started seeing the adults as people. That’s the real turning point in The Summer I Turned Pretty book series. We see Susannah Fisher through Belly’s idolizing eyes, but as the series progresses, that pedestal starts to crack. We realize Susannah isn't just the perfect hostess; she’s a woman facing her own mortality and trying to curate a perfect world for her sons before she leaves it.
Conrad vs. Jeremiah: It Was Never Just a Love Triangle
People love to pick teams. Team Conrad. Team Jeremiah. It’s the classic Team Edward vs. Team Jacob debate but with more linen shirts and sailing references.
Conrad is the "infinite" choice. He’s moody. He’s brilliant. He’s also, frankly, kind of a jerk to Belly for a large chunk of the first two books. He’s carrying the weight of his mother’s illness and his father’s infidelity, and he handles it by shutting everyone out. When he tells Belly "Go upstairs," it’s not because he doesn't care; it's because he's drowning. But that doesn't make it any easier to read.
Then there’s Jeremiah. The "golden boy." He’s the one who actually talks to her. He’s the one who stays.
In It’s Not Summer Without You, the grief is heavy. Susannah is gone. The house is being sold. This is where the series matures. It stops being a teen romance and becomes a story about how families fall apart and knit themselves back together. Jeremiah is the glue. But as we find out in the third book, We’ll Always Have Summer, being the "safe" choice comes with its own set of complications.
The "Cabo" incident? If you know, you know. It’s still one of the most debated plot points in YA history. Was it cheating? They were on a break, sure, but the betrayal felt deeper because it broke the image of Jeremiah as the "good" brother.
What Most People Get Wrong About Belly
Belly gets a lot of hate. People call her selfish or indecisive.
Here’s the thing: she’s a teenager.
Belly is navigating a world where her mother’s best friend—her second mother—just died. She’s navigating her first real heartbreak. She makes mistakes. She hurts Jeremiah’s feelings because she’s still hung up on the idea of Conrad. She’s impulsive. But that’s what makes The Summer I Turned Pretty book series feel human. If she made the "right" choice every time, it would be a boring Hallmark movie.
The books are written in a way that feels like reading a diary. Short chapters. Quick flashes of memory. It mimics the way we actually remember our summers—not as a linear timeline, but as a collection of smells, songs, and specific feelings.
The Ending That Split the Fandom
The finale of the trilogy is polarizing. We get a time jump. We see Belly go to college. We see her grow up without a Fisher brother by her side for a while.
Some fans hate the epistolary style of the ending—the letters. It feels rushed to some. But there’s something poetic about the way Belly and Conrad find their way back to each other as adults. It suggests that they needed to stop being those kids at the beach house before they could actually be partners.
Why the Books Still Matter in 2026
We live in a very digital, very fast-paced world. There’s something deeply grounding about a story that takes place in a town with no cell service (or at least, where cell phones aren't the point). It’s about the physical reality of being near the ocean. It’s about the traditions—the Fourth of July parties, the boardwalk games, the blueberry muffins.
Jenny Han tapped into a universal truth: we are all just trying to get back to the version of ourselves that felt safe. For Belly, that safety was Susannah and the beach house. When that vanished, she had to build a new version of herself.
If you’re planning to revisit the series or dive in for the first time, keep an eye on Laurel, Belly’s mom. As an adult reading these books, Laurel is the secret MVP. Her grief over losing her best friend is arguably more moving than the romance. It’s the backbone of the entire story.
Actionable Steps for the Ultimate Reading Experience
If you want to truly experience The Summer I Turned Pretty book series the way it was intended, don't just binge-read them on a Kindle in one sitting.
- Read them in order, obviously. But pay attention to the dates. The first book is about the "last" perfect summer. The second is the "winter" of their lives. The third is the "spring" or rebirth.
- Track the symbols. The infinity scarf. The glass unicorn. The cocoa with the whipped cream. Han uses these small objects to anchor the emotional beats of the story.
- Compare the "Cabo" plot. If you’ve seen the show, go back and read book three specifically. The nuances of Jeremiah’s character are much more "grey area" in the text.
- Look for the letters. The physical letters in the third book contain some of the best writing in the series. They reveal Conrad’s true thoughts in a way his dialogue never does.
- Visit a coastal town. Honestly, the best way to read these is with the sound of actual waves in the background. It changes the atmosphere completely.
The series is a quick read, but the emotional residue stays with you. It’s a reminder that while summer eventually ends, the people we spent it with stay part of our internal map forever. Whether you're Team Conrad, Team Jeremiah, or Team Belly-needs-to-be-single, there's no denying the cultural footprint of this trilogy. It’s a classic for a reason.