Phoebe Avery has always been a lucky girl. Popular, smart, and beautiful, Phoebe has it all. She's even planning the hottest party ever with her four best friends to celebrate their middle school graduation. With the perfect green dress picked out at Neiman Marcus and half her class clamoring for invites, plus a new guy to crush on, Phoebe could not be in a better mood...until it looks like the party might be over before it can even start.

When Truly is invited to sit at the Popular Table with the group she has dreamed of joining, she can hardly believe her luck. Everyone seems so nice, so kind to one another. But all is not as it seems with her new friends, and soon she's caught in a maelstrom of lies, misunderstandings, accusations and counter-accusations, all happening very publicly in the relentless, hyper-connected social media world from which there is no escape.

Gracie has never felt like this before. One day, she suddenly can't breathe, can't walk, can't anything - and the reason is standing right there in front of her, all tall and weirdly good-looking: A. J. But it turns out A. J. likes not Gracie but Gracie's beautiful best friend, Sienna. Obviously Gracie is happy for Sienna. Super happy! She helps Sienna compose the best texts, responding to A. J.'s surprisingly funny and appealing texts, just as if she were Sienna. Because Gracie is fine. Always! She's had lots of practice being the sidekick, second best.

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.

Being the middle child has its ups and downs. But for Grace, an only child who was adopted at birth, discovering that she is a middle child is a different ride altogether. After putting her own baby up for adoption, she goes looking for her biological family, including: Maya, her loudmouthed younger bio sister, who has a lot to say about their newfound family ties. And Joaquin, their stoic older bio brother, who has no interest in bonding over their shared biological mother.

Last week I cut my hair, bought some boys' clothes and shoes, wrapped a large ACE bandage around my chest to flatten my fortunately-not-large breasts, and began looking for a new name. Angela Katz-McNair has never felt quite right as a girl. Her whole life is leading up to the day she decides to become Grady, a guy. While coming out as transgendered feels right to Grady, he isn't prepared for the reaction he gets from everyone else.

What's it like to be undocumented? High school senior M.T. knows all too well. With graduation and an uncertain future looming, she must figure out how to grow up in the only country she's ever called home... a country in which she's "illegal". M.T. was born in Argentina and brought to America as a baby without any official papers. And as questions of college, work, and the future arise, M.T. will have to decide what exactly she wants for herself, knowing someone she loves will unavoidably pay the price for it.

Liv knows he was always meant to be a boy, but with his new school's terrible dress code, he can't even wear pants. Only skirts. Operation Pants Project begins! The only way for Liv to get what he wants is to go after it himself. But to Liv, this isn't just a mission to change the policy - it's a mission to change his life. And that's a pretty big deal.

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.

With her fiery red hair, new-girl outsider status, and tendency to be a total klutz, Autumn Falls definitely isn’t flying below the radar at Aventura High. Luckily, she makes some genuine friends who take her under their wing. But she also manages to get on the wrong side of the school’s queen bee, and then finds out the guy she’s started to like, funny and sweet Sean, hangs with the mean crowd. Now her rep and her potential love life are at stake.

Sixteen-year-old Yamilet Flores prefers to be known for her killer eyeliner, not for being one of the only Mexican kids at her new, mostly white, very rich Catholic school. But at least here no one knows she’s gay, and Yami intends to keep it that way.

Everyone knows how all those fairy tales go. The princess gets beautiful, nabs her prince, falls instantly in love, lives happily ever after and leaves her evil stepsisters in the dust. But what happens when you're the ugly stepsister and your obnoxiously perfect - read pretty, smart, and, worst of all, sickeningly nice - stepsister is dating the charming, tall, devastatingly handsome guy you've had a thing for since you were nine years old? Quirky, artistic and snarky Mattie Lowe does not lead a charmed life. Her mother is constantly belittling her on Skype.

Vivian Carter's mom was a Riot Grrrl in the 1990s, but now she and Viv live a pretty quiet life in a small Texas town. When Viv witnesses a series of sexist incidents at her high school, she takes a page from her mom's past and makes a feminist zine that she distributes anonymously to her classmates. Viv is just blowing off steam, but before she knows it she's started a revolution.

Maggie Silver has never minded her unusual life. Cracking safes for the world’s premier spy organization and traveling the world with her insanely cool parents definitely beat high school and the accompanying cliques, bad lunches, and frustratingly simple locker combinations. (If it’s three digits, why bother locking it at all?) But when Maggie and her parents are sent to New York City for her first solo assignment, her world is transformed.

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.

While looking out the window with her grandma's binoculars, Sammy witnesses a crime across the street at the Heavenly Hotel. What's worse, the thief saw her spying! As Sammy attempts to find the burglar who has made several other hits in the neighborhood, she finds herself trying to keep him from uncovering her - or worse, the police discovering that she's living illegally with her grandmother in the seniors-only housing!

Seventeen-year-old Bianca Piper is cynical and loyal, and she doesn’t think she’s the prettiest of her friends by a long shot. She’s also way too smart to fall for the charms of man-slut and slimy school hottie Wesley Rush. In fact, Bianca hates him. And when he nicknames her “the Duff,” she throws her Coke in his face. But things aren’t so great at home right now, and Bianca is desperate for a distraction. She ends up kissing Wesley. Worse, she likes it.

Amanda is reliving her 11th birthday over and over again - even the fight with her best friend, Leo. How can she fix everything and put the day behind her? Only time, friendship, and luck will tell.

Cameron Bates (Cam) could have almost any girl at Franklin High School...except for the one he wants. Unfortunately Bebe seems to be immune to his flirty charm and good looks, which means one of two things: a) she's completely oblivious to how he feels, or b) she's just not into him. If that's the case, declaring his love would be disastrous for their friendship. Bianca Barnes (Bebe) has a huge problem: the universe hates her. Every time she admits feelings for a boy, he ends up falling for her sweet, popular, and beautiful sister Beth.

Joanna Gordon has been out and proud for years, but when her popular radio evangelist father remarries and decides to move all three of them from Atlanta to the more conservative Rome, Georgia, he asks Jo to do the impossible: to lie low for the rest of her senior year. And Jo reluctantly agrees. Although it is (mostly) much easier for Jo to fit in as a straight girl, things get complicated when she meets Mary Carlson, the oh-so-tempting sister of her new friend at school. But Jo couldn't possibly think of breaking her promise to her dad.

Leila has made it most of the way through Armstead Academy without having a crush on anyone, which is a relief. As an Iranian American, she’s different enough; if word got out that Leila liked girls, life would be twice as hard. But when beautiful new girl Saskia shows up, Leila starts to take risks she never thought she would.

Last week I cut my hair, bought some boys' clothes and shoes, wrapped a large ACE bandage around my chest to flatten my fortunately-not-large breasts, and began looking for a new name. Angela Katz-McNair has never felt quite right as a girl. Her whole life is leading up to the day she decides to become Grady, a guy. While coming out as transgendered feels right to Grady, he isn't prepared for the reaction he gets from everyone else.

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.

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.

Maddie doesn't believe in luck. She's all about hard work and planning ahead. But one night she buys a lottery ticket on a whim, and, to her astonishment, she wins! In a flash Maddie's life is unrecognizable. No more stressing about college scholarships - nope, now she's suddenly talking about renting a yacht and basking in the spotlight at school! But then rumors start flying, and random people begin asking her for loans. Suddenly Maddie finds that she isn't sure whom she can trust.

The first day of middle school means trading in freeze tag at the pool for new schedules, fabulous outfits, and a fresh start. But for 11-year-old Kaylan, the chaos of new locker combinations, cafeteria cliques, and potential first kisses is more than she can handle. She dreads the start of sixth grade and feels like she wants - no, needs - a winning game plan. Luckily, Kaylan and her effortlessly chill BFF, Arianna, have a fool-proof plan for tackling transitions: a list of 11 things they need to do to totally transform themselves before they both turn 12 in November.

When Gia Montgomery's boyfriend, Bradley, dumps her in the parking lot of her high school prom, she decides to do the unthinkable...convince the cute guy waiting to pick up his sister to pretend to be her boyfriend for the night. The task is simple: two hours, zero commitment, a few white lies.

It's been a year since it happened - when Paige Hancock's first boyfriend died in an accident. After shutting out the world for two years, Paige is finally ready for a second chance at high school...and she has a plan. First: Get her old crush, Ryan Chase, to date her - the perfect way to convince everyone she's back to normal. Next: Join a club. But when Ryan's sweet, nerdy cousin, Max, moves to town and recruits Paige for the Quiz Bowl team, her perfect plan is thrown for a serious loop.

Perfect Parker Fadley isn't so perfect anymore. She's quit the cheerleading squad, she's dumped her perfect boyfriend, and she's failing school. Her parents are on a constant suicide watch and her counselors think she's playing games, but they don't know that the real reason for this whole mess isn't something she can say out loud. It isn't even something she can say to herself. A horrible thing has happened and it just might be her fault.

Most high school sports teams have rivalries with other Schools. At Hamilton High, it’s a civil war: the football team versus the soccer team. And for her part, Lissa is sick of it. Her quarterback boyfriend, Randy, is always ditching her to go pick a fight or haze a freshman. And on three separate occasions Randy’s car has been egged while he and Lissa were inside, making out. She is done competing with a bunch of sweaty boys for her own boyfriend’s attention. Lissa decides to end the rivalry once and for all: She and the other players’ girlfriends go on a hookup strike.