Kiara Brinkman's novel, Up High in the Trees, was a New York Times Book Review Editors' Choice and a Chicago Tribune Favorite Book. Lucy in the Sky, her first graphic novel (with artist Sean Chiki, ) was one of The Beat's Best Comics of 2021. Rhiannon is her second graphic novel.

Sean Chiki is a middle school teacher and cartoonist. His comic stories have been published in collections from Skoda Man Press, and his cartoons have appeared in The Funny Times.

Kiara Brinkman and Sean Chiki live in California with their children and two cats.

"Quiet, poignant, and full of heart--this graphic novel glows with the soft light of growing up." --Kirkus

"A book for all those who need to know they're not alone." --Booklist

"Consider sharing this contemplative graphic novel about a girl's formative summer with fans of Mariko and Jillian Tamaki's This One Summer." --School Library Journal

"A beautiful celebration of the inner lives of the communities around us, including those we might overlook. Empathic and insightful--I want to recommend this book to everyone."
--Jen Wang, author of Ash's Cabin

"Rhiannon is a beautifully drawn story that, like its titular protagonist, gradually reveals layers of tenderness and vulnerability as it develops. The story will stay with you long after the last page."
--Kathy MacLeod, author of Continental Drifter