9 Childhood Books About Friendship That Will Make You So Nostalgic

Four preteen friends have the genius idea of starting a babysitting service together in their neighborhood. The girls of The Baby-Sitters Club learn about growing up and friendship as their group grows along the way.

Best friends Serena van der Woodsen and Blair Waldorf have their fair share of drama in New York's Upper East Side, where they live, go to school, and break hearts. But no matter what Gossip Girl stirs up, their group of friends always seems to have each other's backs, especially S and B.

Four American teen girls experience the pains of junior high together. And of course, each Girl Talk book included their phone conversations.

The adventures of Calvin and Hobbes, a young boy and his stuffed-tiger sidekick, are never short of excitement and imagination. These partners in crime fight aliens and cause trouble at home without ever leaving each other's side.

The Boxcar Children is made up of four close orphaned siblings who solve mysteries together. Whether it's in their backyard or neighborhood, they always find adventure.

Orphan Anne Shirley is mistakenly sent to a couple who requested a boy but ends up living with them. The books detail her life in the Green Gables, her school life, and friendship with the neighboring girl, Diana Barry, and others. Anne of Green Gables makes a name in the village community as a talkative and imaginative girl.

The Saddle Club is made up of best friends Stevie, Carole, and Lisa, who ride at Pine Hollow Stables and share adventures in their town of Willow Creek, VA.

A tale of sisterhood as much as friendship, Little Women is a classic novel that follows four sisters as they transition to womanhood.

Even though these four best friends are spending their first Summer apart, what seems like an ordinary pair of jeans magically fits each of the girls, keeping them together on their separate adventures. The Sisterhood of the Traveling Pants is a coming-of-age story about true friendship, love, and family.