We all know that growing up is hard to do, and sometimes the only thing that makes it better are the reassuring words of someone who has walked that bumpy road just a few steps ahead of you and somehow ended up as a fully-functioning adult. Carrie Hope Fletcher is that person.

Thanks to her phenomenally popular YouTube videos, Carrie has become an 'honorary big sister' to hundreds of thousands of young people who turn to her for advice, friendship and, most of all, the knowledge that things will get better.

Carrie has created a safe and positive space for young people to connect and share their hopes and concerns online, and now she shares her most personal thoughts and experiences in her first book, ALL I KNOW NOW. Part memoir, part advice guide, it includes Carrie's thoughts on some of the topics she's asked about most regularly: bullying, body image, relationships, and perhaps the scariest question of all: what does the future hold for me?

With warmth, wit and a sprinkling of hard-won wisdom, Carrie provides the essential tools for growing up gracefully... most of the time.

Three weeks. Two sisters. One car. A True Story.

Raina can’t wait to be a big sister. But once Amara is born, things aren’t quite how she expected them to be. Amara is cute, but she’s also a cranky, grouchy baby, and mostly prefers to play by herself.

Their relationship doesn’t improve much over the years, but when a baby brother enters the picture and later, when something doesn’t seem right between their parents, they realize they must figure out how to get along. They are sisters, after all.

Raina uses her signature humor and charm in both present-day narrative and perfectly placed flashbacks to tell the story of her relationship with her sister, which unfolds during the course of a road trip from their home in San Francisco to a family reunion in Colorado.

When Sam's best friend gets her first boyfriend, she's not ready to spend the summer listening to the two of them call each other "pookie." Sick of being a third wheel, Sam applies to be a counselor-in-training at Whispering Pines camp in the New York Catskills. But what she doesn't realize is that it's not going to be all Kumbaya sing-alongs and gooey s'mores.

If Ashley, the alpha queen of Whispering Pines, doesn't ruin Sam's summer, then her raging crush on the surfer-blond and flirtatious Hunter just might. At least she has playful Cole, who's always teasing her, but is oh-so-comfortable to hang out with, and the singular gang of girls that become fast friends with Sam—they call themselves the Sleepaway Girls.

Delrita likes being invisible. If no one notices her, then no one will notice her uncle Punky either. Punky is a grown man with a child's mind. Delrita loves him dearly and can't stand people making fun of his Down Syndrome. But when tragedy strikes, Delrita's quiet life—and Punky's—are disrupted forever.

Can she finally learn to trust others, for her own sake and Punky's? This story captures the joy and sorrow that come when we open our hearts to love.

Betsy, Tacy, and Tib are twelve—old enough to do lots of things... even go downtown on their own. There they see their first horseless carriage, discover the joys of the public library, and see a real play at the Opera House. They even find themselves acting in one!

Best of all, they help a lonely new friend feel at home in Deep Valley—the most wonderful place in the world to grow up.

Ever since their first publication in the 1940s, the Betsy-Tacy stories have been loved by each generation of young readers.