Olive Torres is used to being the unlucky twin: from inexplicable mishaps to a recent layoff, her life seems to be almost comically jinxed. By contrast, her sister Ami is an eternal champion...she even managed to finance her entire wedding by winning a slew of contests. Unfortunately for Olive, the only thing worse than constant bad luck is having to spend the wedding day with the best man (and her nemesis), Ethan Thomas.

When 17-year-old Rune Kristiansen returns from his native Norway to the sleepy town of Blossom Grove, Georgia, where he befriended Poppy Litchfield as a child, he has just one thing on his mind: Why had the girl who was one half of his soul, who promised to wait faithfully for his return, cut him off without a word of explanation?

Waverly Lyons has been caught in the middle of her parents’ divorce for as long as she can remember. This summer, the battle rages over who she’ll spend her vacation with, and when Waverly’s options are shot down, it’s bye-bye Fairbanks, Alaska, and hello Holden, Florida, to stay with her aunt. Coming from the tundra of the north, the beach culture isn’t exactly Waverly’s forte. The sun may just be her mortal enemy, and her vibe is decidedly not chill. To top it off? Her ability to swim is nonexistent.

American Ella Durran has had the same plan for her life since she was 13: study at Oxford. At 24, she’s finally made it to England on a Rhodes Scholarship when she’s offered an unbelievable position in a rising political star’s presidential campaign. With the promise that she’ll work remotely and return to DC at the end of her Oxford year, she’s free to enjoy her Once in a Lifetime Experience. That is until a smart-mouthed local who is too quick with his tongue and his car ruins her shirt and her first day.

There's something achingly familiar about Daniel Grigori. Mysterious and aloof, he captures Luce Price's attention from the moment she sees him on her first day at the Sword & Cross boarding school in sultry Savannah, Georgia. He's the one bright spot in a place where cell phones are forbidden, the other students are all screw-ups, and security cameras watch every move.

Spencer covets her sister's boyfriend. Aria's fantasizing about her English teacher. Emily's crushing on the new girl at school. And Hanna uses some ugly tricks to stay beautiful. But they've all kept an even bigger secret since their friend Alison vanished.

Hi, my name is Bree Camden, and I’m hopelessly in love with my best friend and star quarterback Nathan Donelson (so is half of America, judging by the tabloids and how much the guy dates). The first step is admitting it, right? Except, I can never admit it to him because he clearly doesn’t see me that way, and the last thing I want is for things to get weird between us. Nothing but good old-fashioned no-touching-the-sexiest-man-alive platonic friendship for us! Everything is exactly how I like it! Yes. Good. (I’m not crying; I’m just peeling an onion.)

Pair skaters Courtney and Mark have one shot left at their Olympic dream. They vow not to let anything get in their way, especially not Josh and Stephanie, the wealthy and talented brother and sister team. The heart doesn't always listen to reason, though. The more time Courtney spends with sweet, shy Josh, the harder she falls for him.

Dylan Woods hasn’t seen her best friend, Langston, in years. After he moved to Los Angeles, he ghosted her. Then he became Legendary, the biggest teen R&B artist on the planet. For the most part, Dylan has moved on, with her sights set on Juilliard. But when her parents announce that Langston is coming for a short stay with them, the entire family is thrilled. Except for Dylan. The idea of sharing a house with music’s biggest bad boy makes her stomach churn.

Anna is looking forward to her senior year in Atlanta, where she has a great job, a loyal best friend, and a crush on the verge of becoming more. Which is why she is less than thrilled about being shipped off to boarding school in Paris - until she meets Etienne St. Clair: Perfect, Parisian (and English and American, which makes for a swoon-worthy accent), and utterly irresistible. The only problem is that he's taken, and Anna might be, too, if anything comes of her almost-relationship back home.

Stella will do anything for her sick sister, Cara - even stand in line for an autographed Heartbreakers CD for four hours. She's totally winning best birthday gift this year. At least she met a cute boy with soft brown hair and gorgeous blue eyes while getting her caffeine fix. Too bad she'll never see him again. Except Stella's life has suddenly turned into a cheesy love song. Because Starbucks Boy is Oliver Perry, the lead singer for the Heartbreakers.

Molly Barlow isn’t that girl anymore. A business major at her college in Boston, she’s reinvented herself after everything that went down a year ago...after all the people she hurt and the family she tore apart. Slowly, life is getting back to normal. Molly has just said "I love you" to her new boyfriend, Ian, and they are off on a romantic European vacation together, starting with scenic London. But there on a tube platform, the past catches up to her in the form of Gabe, her ex, traveling on his own parallel vacation with new girlfriend Sadie.

If someone had told me a year ago that I was about to fall in love, go on an epic road trip, ride a Triceratops, sing on a bar, and lose my virginity, I would have assumed they were on drugs. Well, that is, until I met Beckham. Beck was mostly to blame for my recklessness.

Jackie does not like surprises. Chaos is the enemy! The best way to get her successful, busy parents to notice her is to be perfect. The perfect look, the perfect grades—the perfect daughter. And then Jackie's family dies in a freak car accident and she has to move cross-country to live with the Walters—her new guardians. Now Jackie must trade in her Type A personality and New York City apartment for a Colorado ranch and all the wild Walter boys who come with it. How can she fit in and move on when she needs to keep her parents' memory alive by living up to the promise of perfect?

Ryn has one unread text message on her phone. And it's been there for almost a year. She hasn't tried to read it. She can't. She won't. Because that one message is the last thing her best friend ever said to her before she died. But as Ryn finds herself trapped in the Denver International Airport on New Year's Eve thanks to a never-ending blizzard on the one-year anniversary of her best friend's death, fate literally runs into her. And his name is Xander.

Ariana Osgood has everything an Easton Academy girl could want: straight A's, the perfect boyfriend, and a coveted spot in exclusive Billings House. But on the first night of Christmas vacation, a blizzard traps her on campus with irresistible bad-boy Thomas Pearson. Alone. As the snow transforms Easton into a winter wonderland, Ariana finds herself falling for Thomas. But someone is watching their clandestine romance unfold, someone intent on turning their holiday weekend into a nightmare.

If someone had told me a year ago that I was about to fall in love, go on an epic road trip, ride a Triceratops, sing on a bar, and lose my virginity, I would have assumed they were on drugs. Well, that is, until I met Beckham. Beck was mostly to blame for my recklessness.

Ryn has one unread text message on her phone. And it's been there for almost a year. She hasn't tried to read it. She can't. She won't. Because that one message is the last thing her best friend ever said to her before she died. But as Ryn finds herself trapped in the Denver International Airport on New Year's Eve thanks to a never-ending blizzard on the one-year anniversary of her best friend's death, fate literally runs into her. And his name is Xander.

When Abbey’s best friend, Kristen, vanishes at the bridge near Sleepy Hollow Cemetery, everyone else is all too quick to accept that Kristen is dead, and rumors fly that her death was no accident. Abbey goes through the motions of mourning her best friend, but privately, she refuses to believe that Kristen is really gone. Then she meets Caspian, the gorgeous and mysterious boy who shows up out of nowhere at Kristen’s funeral, and who keeps reappearing in Abbey’s life. Caspian clearly has secrets of his own, but he’s the only person who makes Abbey feel normal again.

Clara Shin lives for pranks and disruption. When she takes one joke too far, her dad sentences her to a summer working on his food truck, the KoBra, alongside her uptight classmate Rose Carver. Not the carefree summer Clara had imagined. But maybe Rose isn't so bad. Maybe the boy named Hamlet (yes, Hamlet) crushing on her is pretty cute. Maybe Clara actually feels invested in her dad's business. What if taking this summer seriously means Clara has to leave her old self behind?

Samantha Kingston has it all: the world's most crush-worthy boyfriend, three amazing best friends, and first pick of everything at Thomas Jefferson High—from the best table in the cafeteria to the choicest parking spot. Friday, February 12, should be just another day in her charmed life. Instead, it turns out to be her last. Then she gets a second chance. Seven chances, in fact.

After breaking up with her bad-news boyfriend, Reagan O’Neill is ready to leave her rebellious ways behind...and her best friend, country superstar Lilah Montgomery, is nursing a broken heart of her own. Fortunately, Lilah’s 24-city tour is about to kick off, offering a perfect opportunity for a girls-only summer of break-up ballads and healing hearts. But when Matt Finch joins the tour as its opening act, his boy-next-door charm proves difficult for Reagan to resist, despite her vow to live a drama-free existence.

When her boyfriend dies a most untimely death, Aura--who can see ghosts--is forced to reconsider her relationship with the living and dead in Shade.

When college freshman Rowan Michaels meets gorgeous, up-and-coming rock star Adam Everest, she knows a player like him is the last thing she needs after her ex-boyfriend shattered her heart. But she can't stop thinking about the kiss they shared on his tour bus. On the first day of school, Rowan is stunned when Adam saunters into her French class. He's soon failing miserably, and, on a whim, she offers to tutor him. But Adam doesn't recognize her as a makeup-free, glasses-clad college student.

Regan's brother Liam can't stand the person he is during the day. Like the moon from whom Liam has chosen his female namesake, his true self, Luna, only reveals herself at night. In the secrecy of his basement bedroom Liam transforms himself into the beautiful girl he longs to be, with help from his sister's clothes and makeup. Now, everything is about to change - Luna is preparing to emerge from her cocoon. But are Liam's family and friends ready to welcome Luna into their lives?

Shortly before her 17th birthday, Emma discovers she has a long-lost twin named Sutton Mercer. She contacts Sutton, who agrees to a rendezvous but never shows up. Curious at first, Emma slips into Sutton's ultra-glamorous life, assuming her identity. When it becomes clear that Sutton is not coming back, that someone made sure she never could, Emma plunges in to investigate who could have wanted her sister gone (a fairly long list, she discovers).

Best friends Dave and Julia were determined never to be cliché high school kids. They even wrote their own Never List of everything they vowed they'd never, ever do in high school. Some of the rules have been easy to follow, like number five, never dye your hair a color of the rainbow, or number seven, never hook up with a teacher. But Dave has a secret: he's broken rule number eight, never pine silently after someone for the entirety of high school. It's either that or break rule number ten, never date your best friend.

Four teens across the country have only one thing in common: A girl named Leila. She crashes into their lives in her absurdly red car at the moment they need someone the most. There's Hudson, a small-town mechanic who is willing to throw away his dreams for true love. And Bree, a runaway who seizes every Tuesday - and a few stolen goods along the way. Elliot believes in happy endings…until his own life goes off-script. And Sonia worries that when she lost her boyfriend, she also lost the ability to love.

Sixteen-year-old Sayers Wayte has everything. Popularity, good looks, perfect grades—there's nothing Sayers' family money can't buy. Until he's kidnapped by a man who tells him the privileged life he's been living is based on a lie. Trapped in a windowless room, without knowing why he's been taken or how long the man plans to keep him shut away, Sayers faces a terrifying new reality. To survive, he must forget the world he once knew, and play the part his abductor has created for him.

Harper Price, peerless Southern belle, was born ready for a Homecoming tiara. But after a strange run-in at the dance imbues her with incredible abilities, Harper's destiny takes a turn for the seriously weird. She becomes a Paladin, one of an ancient line of guardians with agility, super strength and lethal fighting instincts.