The six horrible Herdmans, the worst children in the history of the world, take over the annual Christmas pageant.

When Rafe Khatchadorian enters middle school, he teams up with his best friend, "Leo the Silent, " to create a game to make school more fun by trying to break every rule in the school's code of conduct.

Grown-ups never misbehave, cheat, talk with their mouths full, or complain--despite ample evidence to the contrary.

"Mr. and Mrs. Twit are the smelliest, nastiest, ugliest people in the world. They hate everything--except playing mean jokes on each other, catching innocent birds to put in their Bird Pies, and making their caged monkeys, the Muggle-Wumps, stand on their heads all day. But the Muggle-Wumps have had enough. They don't just want out, they want revenge."--Back cover.

A self-centered child is asked to consider what would happen if everyone behaved the way they did.

Babies have tantrums, and do not like being told NO, but part of growing up is learning to ask nicely, and accept restrictions--that is what big kids do.

"Skeleton-like characters inspired by Día de los Muertos engage in "good" and "bad" behavior in a humorous exploration of opposites" -- Provided by publisher. "Personajes con forma de esqueleto inspirados en el D̕a de los Muertos se comportan" bien "y" mal "en una exploraci̤n humor̕stica de los opuestos" - Proporcionado por el editor.

Sally McCabe is a very little girl, and nobody notices her, although she notices everything that goes on around her--but when she speaks out about the unkindness she sees, people start to pay attention.

Sophie's is hurt when the other children laugh at her painting of her favorite tree--but when she explains her painting everybody understands what she was trying to do.

The Keys family is vacationing at Shenandoah National Park intending to do some serious hiking, but twelve-year-old Marlon would much rather be on his phone talking with his friends at home in Chicago, and is further annoyed because the girl his own age, Nadia, turns out to be an experienced hiker; but when on the first day his complaining and resistance separates him from his parents his "boring" vacation becomes an exercise in survival as he and...