I'm Mackenzie Wellesley, and I've spent my life avoiding the spotlight. But that was four million hits ago... Blame it on that grade school ballet recital, when I tripped and pulled the curtain down, only to reveal my father kissing my dance instructor. At Smith High, I'm doing a pretty good job of being the awkward freshman people only notice when they need help with homework. Until I send a burly football player flying with my massive backpack, and make a disastrous - not to mention unwelcome - attempt at CPR.

Seventeen, fashion-obsessed, and gay, Abby Ives has always been content playing the sidekick in other people's lives. While her friends and sister have plunged into the world of dating and romances, Abby's been happy to focus on her plus-size style blog and her dreams of taking the fashion industry by storm. When she lands an internship at her favorite boutique, she's thrilled to take a step toward her dream career. Then she falls for her fellow intern, Jordi Perez. Hard. And now she's competing against the girl she's kissing to win the coveted paid job at the end of the internship.

Jack has a lot of sex - and he's not ashamed of it. While he's sometimes ostracized and gossip constantly rages about his sex life, Jack always believes that "it could be worse". But then, the worse unexpectedly strikes: When Jack starts writing a teen sex-advice column for an online site, he begins to receive creepy and threatening love letters that attempt to force Jack to curb his sexuality and personality. Now, it's up to Jack and his best friends to uncover the stalker - before their love becomes dangerous.

Sixteen-year-old and not-so-openly gay Simon Spier prefers to save his drama for the school musical. But when an email falls into the wrong hands, his secret is at risk of being thrust into the spotlight. Now Simon is actually being blackmailed: If he doesn't play wingman for class clown Martin, his sexual identity will become everyone's business. Worse, the privacy of Blue, the pen name of the boy he's been emailing with, will be compromised.

When Kate, single mother and law firm partner, gets an urgent phone call summoning her to her daughter's exclusive private school, she's shocked. Amelia has been suspended for cheating, something that would be completely out of character for her over-achieving, well-behaved daughter. Kate rushes to Grace Hall, but what she finds when she finally arrives is beyond comprehension. Her daughter is dead.

Emma Putnam is dead, and it's all Sara Wharton's fault. At least, that's what everyone seems to think. Sara, along with her best friend and three other classmates, has been criminally charged for the bullying and harassment that led to Emma's shocking suicide. Now Sara is the one who's ostracized, already guilty according to her peers, the community, and the media. During the summer before her senior year, in between meetings with lawyers and a court-recommended therapist, Sara is forced to reflect on the events that brought her to this moment - and ultimately consider her role in an undeniable tragedy.

Judy Lohden is your above-average 16-year-old: sarcastic and vulnerable, talented and uncertain, full of big dreams for a big future. With a singing voice that can shake an auditorium, she should be the star of Darcy Arts Academy, the local performing-arts high school. So why is a girl this promising hiding out in a seedy motel room on the edge of town?

Two secrets. One bet. Who will break first? Taylor Caldwell can't decide if she wants to kiss her new college roommate or punch him. On the one hand, Hunter Zaccadelli is a handsome blue-eyed bundle of charm. On the other, he's a tattooed, guitar-playing bad boy. Maybe that's why Taylor's afraid of falling in love with him, or anyone else. She doesn't want to get burned, so she needs him gone before it's too late.

When Jade is given a scholarship to an elite private college in Connecticut, she sees it as a chance to finally escape her painful past and get a fresh start. She’s determined to succeed and that means keeping her focus on school and not guys. But that plan falls apart her first day on campus when Garret, a wealthy prep school boy with swimmer abs and a perfect smile, offers to help her move in. Jade tries to push him away but she can’t deny her attraction to him and Garret won’t let her.

Everyone knows Alice slept with two guys at one party. When Healy High star quarterback Brandon Fitzsimmons dies in a car crash, it was because he was sexting with Alice. Ask anybody. Rumor has it Alice Franklin is a slut. It's written all over the "slut stall" in the girls' bathroom: "Alice had sex in exchange for math test answers" and "Alice got an abortion last semester." After Brandon dies, the rumors start to spiral out of control.

It's been one year since the brutal murder of her older sister, Zoë, and fifteen-year-old Echo is still reeling from the aftermath. Her parents are numb, her friends are moving on, and the awkward start to her freshman year proves she'll never live up to her sister's memory. Until Zoë's former boyfriend Marc shows up with Zoë's diary. At first Echo's not interested, doubting there's anything in there she doesn't already know. But when curiosity prevails, she starts reading, becoming so immersed in her sister's secret world, their lives begin to blur.

Sixteen-year-old Sana Kiyohara has too many secrets. Some are small, like how it bothers her when her friends don't invite her to parties. Some are big, like the fact that her father may be having an affair. And then there's the one that she can barely even admit to herself - the one about how she might have a crush on her best friend. When Sana and her family move to California, she begins to wonder if it's finally time for some honesty, especially after she meets Jamie Ramirez.

Kristy Martin is 20-something, single, and living it up in Chicago. She has a crew of close girlfriends to keep her social calendar active and is celebrating finally securing employment in her chosen field. While always free-spirited, Kristy is getting tired of the revolving door - or, more accurately, bed - of random guys and failed dates and comes up with a plan to get her act together when it comes to the opposite sex. That idea is quickly shot down by her bestie Breely Laver and replaced with a bet she can’t refuse.

Astrid Jones desperately wants to confide in someone, but her mother's pushiness and her father's lack of interest tell her they're the last people she can trust. Instead, Astrid spends hours lying on the backyard picnic table watching airplanes fly overhead. She doesn't know the passengers inside, but they're the only people who won't judge her when she asks them her most personal questions...like what it means that she's falling in love with a girl.

Kyle Blake likes plans. So far, they're pretty simple: Finish her senior year of high school, head off to a good college, find a cute boyfriend, graduate, get a good job, get married, the whole heterosexual shebang. Nothing is going to stand in the way of that plan. Not even Stella Lewis. Stella Lewis also has a plan: Finish her senior year as cheer captain, go to college, finally let herself flirt with (and maybe even date) a girl for the first time and go from there. Fate has other plans for Kyle and Stella when they're paired up in their AP English class.