When Chase returns to middle school after falling off the roof and losing his memory, he learns that the person he was before the amnesia is not someone he likes.

Greg records his sixth-grade experiences in a middle school where he and his best friend, Rowley, undersized weaklings amid boys who need to shave twice daily, hope just to survive, but when Rowley grows more popular, Greg must take drastic measures to save their friendship.

Abandoned by her father at a young age, half-Japanese, half-Italian middle schooler Amber Miyamoto must dream up a way for her and her sister to make it on their own while making friends at her new school.

Amy Flowers is starting seventh grade at a new school, the exclusive Allington Academy, but in order to fit in, she has to get on the right side of the League, the clique that controls the school, and its mean leader, Fiona.

"Fifth-grader Sammy Hayes-Rodriguez struggles to fit in when his inventor mother requires him to take her latest creation, a robotic 'brother,' to school with him to learn to become a student"--

After finally getting a cell phone, Babymouse tries to increase her popularity in middle school by becoming the queen of social media.

"Babymouse joins the school Film Club and writes the greatest cinematic masterpiece of all time! But when the movie gets shown to the entire school, will it be a box office hit or a flop?"--

Recently estranged from her best friend and weeks away from shifting from only child to big sister, seventh grader Beatrix Lee consoles herself by writing haiku in invisible ink and hiding the poems, but one day she finds a reply--is it the librarian with all the answers, the editor of the school paper who admits to admiring her poetry, an old friend feeling remorse, or the boy obsessed with visiting the local labyrinth?

Greg Heffley tells about his summer vacation and his attempts to steer clear of trouble when he returns to middle school and tries to keep his older brother Rodrick from telling everyone about Greg's most humiliating experience of the summer.

The trip to Australia Rafe has won starts badly, but after connecting with a group of misfits he finds a way to do what he does best--create mayhem.