Sammie McCoy is a girl with a plan: graduate at the top of her class and get out of her small town as soon as possible. Nothing will stand in her way - not even the rare genetic disorder the doctors say will slowly steal her memories and then her health. So the memory book is born: a journal written to Sammie's future self, so she can remember everything, from where she stashed her study guides to just how great it feels to have a best friend again.

Overworked and underappreciated, single mom Amy Byler needs a break. So when the guilt-ridden husband who abandoned her shows up and offers to take care of their kids for the summer, she accepts his offer and escapes rural Pennsylvania for New York City. Usually grounded and mild mannered, Amy finally lets her hair down in the city that never sleeps. She discovers a life filled with culture, sophistication, and - with a little encouragement from her friends - a few blind dates.

Do you want to be popular? Stephanie Landry does. That's why this year, she has a plan to get in with the It Crowd in no time flat. She's got a secret weapon: an old book called (what else?) How to Be Popular.

The first thing I noticed about C.J. Gorman was his plexiglass bra. So begins Destination Unknown—it's 1987 in New York City, and Micah is at a dance club, trying to pretend he's more out and outgoing than he really is. C.J. isn't just out—he’s complete out there, and Micah can't help but be both attracted to and afraid of someone who travels so loudly and proudly through the night. A connection occurs. Is it friendship? Romance? Is C.J. the one with all the answers... or does Micah bring more to the relationship that it first seems?

Sixteen-year-old Lara Jean Song keeps her love letters in a hatbox her mother gave her. They aren’t love letters that anyone else wrote for her; these are ones she’s written. One for every boy she’s ever loved - five in all. When she writes, she pours out her heart and soul and says all the things she would never say in real life, because her letters are for her eyes only. Until the day her secret letters are mailed, and suddenly, Lara Jean’s love life goes from imaginary to out of control.

Cannie Shapiro never wanted to be famous. The smart, sharp, plus-sized pop culture reporter was perfectly content writitng about other people's lives in the pages of the Philadlphia Examiner. But the day she opened up a national women's magazine to find out that her ex-boyfriend has been chronicling their ex-sex life is the day her life changes forever.

She's just a New York City girl living with her artist mom. News flash: Dad is prince of Genovia. (So that's why a limo always meets her at the airport!) Downer: Dad can't have any more kids. (So no heir to the throne.) Shock of the century: Like it or not, Mia is prime princess material.

Thirteen-year-old Stewart is academically brilliant but socially clueless. Fourteen-year-old Ashley is the undisputed "it" girl in her class, but her grades stink. Their worlds are about to collide when Stewart and his dad move in with Ashley and her mom. Stewart is trying to be 89.9 percent happy about it, but Ashley is 110 percent horrified. She already has to hide the real reason her dad moved out; "Spewart" could further threaten her position at the top of the social ladder.

For Penny Lee high school was a total nonevent. Her friends were okay, her grades were fine, and while she somehow managed to land a boyfriend, he doesn't actually know anything about her. When Penny heads to college in Austin, Texas, to learn how to become a writer, it's 79 miles and a zillion light-years away from everything she can't wait to leave behind.

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.

Twelve-year-old Lucy Desberg is a natural problem solver. After the local homecoming queen shows up at her family's struggling drugstore with a beauty disaster that Lucy helps to fix, Lucy has a long line of makeover customers for every school dance and bat mitzvah. But all the makeup tips in the world won't help save the pharmacy. If only she could find a way to make the pharmacy the center of town again - a place where people want to spend time, like in the old days.

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?

Jen Dixon is not your typical Kansas City kindergarten class mom - or mom in general. Jen already has two college-age daughters by two different (probably) musicians, and it's her second time around the class mom block with five-year-old Max - this time with a husband and father by her side. Though her best friend and PTA president sees her as the "wisest" candidate for the job (or oldest), not all of the other parents agree.

Everything about Jessie is wrong. At least that's what it feels like during her first week of junior year at her new ultra-intimidating prep school in Los Angeles. Just when she's thinking about hightailing it back to Chicago, she gets an email from a person calling themselves Somebody/Nobody (SN for short), offering to help her navigate the wilds of Wood Valley High School. Is it an elaborate hoax? Or can she rely on SN for some much-needed help?

She doesn't want to go, but Em must chaperone her little sister to the grand opening of a new Stark Megastore. Her sister can't wait to see the heartthrobs and supermodels that will make an appearance, including hunky Gabriel Luna and beautiful Nikki Howard.

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.

Twelve-year-old Lucy Desberg is a natural problem solver. After the local homecoming queen shows up at her family's struggling drugstore with a beauty disaster that Lucy helps to fix, Lucy has a long line of makeover customers for every school dance and bat mitzvah. But all the makeup tips in the world won't help save the pharmacy. If only she could find a way to make the pharmacy the center of town again - a place where people want to spend time, like in the old days.

In Hollywood, fame can be found on every corner and behind any door. You just have to know where to look for it. Nineteen-year-old Madison Parker made a name for herself as best frenemy of nice-girl-next-door Jane Roberts on the hot reality show L.A. Candy. Now Madison's ready for her turn in the spotlight and she'll stop at nothing to get it. Sure, she's the star of a new show, but with backstabbing friends and suspicious family members trying to bring her down, Madison has her work cut out for her.

Sixteen-year-old Tessa Johnson has never felt like the protagonist in her own life. She’s rarely seen herself reflected in the pages of the romance novels she loves. The only place she’s a true leading lady is in the swoony love stories she shares only with Caroline, her best friend. When Tessa is accepted into the creative writing program of a prestigious art school, she’s excited to finally let her stories shine. But when she goes to her first workshop, the words are just...gone. Caroline has a solution: Tessa needs to find some inspiration in a real-life love story of her own.

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.

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.

After grad school, Shay Dixon feels like she's had enough for awhile. Inspired by her spiritual adviser - a soul-soothing blues player named Nina Simon - Shay calls her estranged mother Nona for the first time in years, and shocks herself by asking if it would be okay to come home for a while.

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.

Filled with wit and heart, Get Lucky by Katherine Center explores the deep bonds of sisterhood. Sarah Harper’s whole world revolved around her job at a New York advertising agency before an email snafu got her fired. Now she’s seeking refuge at her sister Mackie’s home in Houston. But Mackie, who’s unable to get pregnant, is also down-and-out these days. So Sarah decides to do something good and becomes a surrogate mother.

Justin has two goals for sophomore year: to date Chuck, the hottest boy in school, and to become the king of Cool U, the table in the cafeteria where the "in" crowd sits. Unfortunately, he has the wrong look (short, plump, Brillo-pad curls), he has the wrong interests (Broadway, chorus violin), and he has the wrong friends (Spencer, into Eastern religions, and Mary Ann, who doesn't shave her armpits). And Chuck? Well, he's not gay; he's dating Becky, a girl in chorus with whom Justin is friendly.

For Charlotte Crawford, the worst part about being dumped after 20 years of marriage is that her husband, Jack, doesn't want another woman; he just doesn't want her. Forty-two and clueless, Charlotte is a fish out of water in a dating pool teeming with losers. Just when she thinks she's finally put her failed marriage behind her, it comes back to bite her in the ass...hard. Without warning, Charlotte finds herself staring down the barrel of a future she wouldn't (she would totally) wish on her worst enemy.

Enrique “Quique” Luna has one goal this summer—get over his crush on Saleem Kanazi by pursuing his other romantic prospects. Never mind that he’s only out to his best friend, Fabiola. Never mind that he has absolutely zero game. And definitely forget the fact that good and kind and, not to mention, beautiful Saleem is leaving LA for the summer to meet a girl his parents are trying to set him up with. Luckily, Quique’s prospects are each intriguing in their own ways.

When Charlie McDowell began sharing his open letters to his noisy upstairs neighbors - two impossibly ditzy female roommates in their mid-twenties - on Twitter, his feed quickly went viral. His followers multiplied and he got the attention of everyone from celebrities to production studios to major media outlets such as Time and Glamour.

Now Dear Girls breaks out of the 140-character limit as Charlie imagines what would happen if he put the wisdom of the girls to the test.

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.

Norris is clever, cynical, and quite possibly too smart for his own good. A Black French Canadian, he knows from watching American sitcoms that those three things don’t bode well when you are moving to Texas. Plunked into a new high school, Norris finds himself cataloging everyone he meets: the Cheerleaders, the Jocks, the Loners, and even the Manic Pixie Dream Girl. Making a ton of friends has never been a priority for him, and this way he can at least amuse himself until it’s time to go back to Canada, where he belongs. Yet those labels soon become actual people to Norris....