My Friend with Autism by Beverly Bishop, illustrated by Craig Bishop

From chapters.ca:
Written for classmates of spectrum students and the classmates' parents, this kid-friendly book explains in positive ways that children with autism are good at some things, not so good at others - just like everyone else! The narrator (a peer) notes that his friend's senses work "really well" - he can hear sounds no one else can hear; his eyes work so well bright lights can hurt them. In all cases, the differences are described in a kind, understanding manner. There are charming illustrations for readers to colour. "Notes for Adults" offer parents more detailed information about the "kid''s pages."

My Brother Charlie by Holly Robinson Peete and Ryan Elizabeth Peete, illustrated by Shane W Evans

From chapters.ca:
Callie is very proud of her brother Charlie. He's good at so many things - swimming, playing the piano, running fast. And Charlie has a special way with animals, especially their dog, Harriett. But sometimes Charlie gets very quiet. His words get locked inside him, and he seems far away. Then, when Callie and Charlie start to play, Charlie is back to laughing, holding hands, having fun. Charlie is like any other boy - and he has autism. In this story, told from a sister's point of view, we meet a family whose oldest son teaches them important lessons about togetherness, hope, tolerance, and love.

Autism and Me: Sibling Stories by Ouise Shapiro, photos by Steven Vote

From chapters.ca:
In these moving essays, children tell their story of what it's like to live with a sibling who has autism.

Rules by Cynthia Lord

From chapters.ca:
Twelve- year- old Catherine just wants a normal life. Which is near impossible when you have a brother with autism and a family that revolves around his disability. She's spent years trying to teach David the rules - from "a peach is not a funny-looking apple" to "keep your pants on in public!" - in order to head off his embarrassing behaviours. But the summer Catherine meets Jason, a surprising new sort- of friend, and Kristi, the next- door friend she's always wished for, it's her own shocking behavior that turns everything upside down and forces her to ask: What is normal?

A Write and Wong Mystery: The Case of the Prank that Stank by Laura J Burns and Melinda Metz

From chapters.ca:
B. Orville Wright has Asperger's Syndrome - and a genius level IQ. He's not popular, but he and his best friend, Agatha Wong, are great detectives. When a prank goes wrong and the field house is burned down during Placid Middle School's annual football game, Agatha and Orville smell foul play.

A Corner of the Universe by Ann M. Martin

From chapters.ca:
The summer she turns 12, Hattie Owen is steeped in the routines of her small-town life until the startling arrival of an uncle no one has ever spoken about. Now that Uncle Adam's "school" - an institution for the mentally disabled - is closing, Hattie's family must deal with a childlike young man whose existence they've denied for years. Hattie suddenly experiences a summer in which she learns living life fully means facing both the good times and the bad.

The Curious Incident of the Dog in the Night-Time by Mark Haddon

From chapters.ca:
Christopher John Francis Boone knows all the countries of the world and their capitals and every prime number up to 7,057. Although gifted with a superbly logical brain, Christopher is autistic. Everyday interactions and admonishments have little meaning for him. At fifteen, Christopher’s carefully constructed world falls apart when he finds his neighbour’s dog Wellington impaled on a garden fork, and he is initially blamed for the killing.
Christopher decides that he will track down the real killer, and turns to his favourite fictional character, the impeccably logical Sherlock Holmes, for inspiration. But the investigation leads him down some unexpected paths and ultimately brings him face to face with the dissolution of his parents’ marriage. As Christopher tries to deal with the crisis within his own family, the narrative draws readers into the workings of Christopher’s mind.

Al Capone Does My Shirts by Gennifer Choldenko

From chapters.ca:
Moose Flannagan moves with his family to Alcatraz so his dad can work as a prison guard and his sister, Natalie, can attend a special school. But Natalie has autism, and when she's denied admittance to the school, the stark setting of Alcatraz begins to unravel the tenuous coping mechanisms Moose's family has used for dealing with her disorder. When Moose meets Piper, the cute daughter of the Warden, he knows right off she's trouble. But she's also strangely irresistible. All Moose wants to do is protect Natalie, live up to his parents' expectations, and stay out of trouble. But on Alcatraz, trouble is never very far away. Set in 1935, when guards actually lived on Alcatraz Island with their families, Choldenko's second novel brings humour to the complexities of family dynamics and illuminates the real struggle of a kid trying to free himself from the "good boy" stance he's taken his whole life.