Matthew Posner

Theo is brokenhearted when he accidentally lets go of the string of his party balloon. As he watches it float out of sight, Theo wonders where his balloon might have gone. Luckily, his older brother Zeke knows everything about everything. Zeke...

Pierre is excited about his trip to Paris for the poodle championship, and he can't wait to see the sights. But when his beloved Miss Murphy leaves him in the hotel room, Pierre takes matters into his own paws. He slips out of their room and makes his...

Pierre, a pampered pooch, misses his friends, Sparky and Lou. But how will he ever find them? They live in a park on the other side of town. Pierre has a plan, and one afternoon while Miss Murphy naps, he slips out of their apartment and sets off to...

Bunny is in trouble. He’s been kidnapped from the skating rink at City Hall in Toronto, and now he’s locked in a cold basement room, still in his parka and skates. Where is he? And why do his kidnappers keep asking questions about his dead grandpa and...

Beloved illustrator Wallace Edwards invites us into the world of Professor I.B. Doodling, a traveling artist who takes suggestions from schoolchildren in order to create fantastical hybrid animals. The result of these visits is Unnatural Selections, a...