The summer that Hattie turns twelve, she meets the childlike uncle she never knew and becomes friends with a girl who works at the carnival that comes to Hattie's small town.

Isaac is a perfectionist, especially when it comes to baseball, and is unable to cope when things go wrong until his coach asks him to help out with a Unified Sports basketball team on which intellectually-disabled and other children play together.

While helping police officers Esther and Lon investigate a suspicious death at her group home, nineteen-year-old Sal Miyake, who is mentally challenged, gains insights into herself and makes new friends.

After a fight at school leaves Marcus facing suspension, Marcus's mother takes him and his younger brother, who has Down syndrome, to Puerto Rico to visit relatives they do not remember or have never met, and while there Marcus starts searching for his father, who left their family ten years ago and is somewhere on the island.

Fifth grade is not for amateurs, according to Liam. Luckily, he knows that being more than one-third nerd is not cool. Liam lives in the Bay area near San Francisco with his mom and two younger sisters. Dakota is fascinated by science and has a big personality but struggles to make friends; Izzy, a child with Down syndrome, makes friends easily and notices things that go past everyone else. Dad lives across town, but he's over a lot. And then there's...

"When thirteen-year-old amateur entomologist Daisy gets an assignment to 'change the world,' she's determined to help her older brother, Sorrel--who has Down syndrome and adores men's fashion--fulfill his dream of becoming a YouTube celebrity"--

It is 1871 in Scranton, Pennsylvania, and fourteen-year-old Pringle Rose, still grieving from the death of her parents, takes her brother Gideon, who has Down syndrome, escapes from her uncle and aunt, taking a train to Chicago--but disaster seems to follow her there.