Charise Mericle Harper has written more than fifty books for children, including the Crafty Cat, Fashion Kitty, and Just Grace series, and The Good For Nothing Button. Charise is excited and slightly nervous to share Bad Sister with the world. It's not easy to admit you were bad, even if now you are very, very good.

Rory Lucey is an illustrator and art teacher. He is the author and illustrator of Jonesy: Nine Lives on the Nostromo and a contributor to Alien: 40 Years 40 Artists, both from Titan Books. He lives in New Jersey with his wife and two cats.

A Junior Library Guild selection

"Cathartic proof that childhood provides lessons for a lifetime and that change is possible." --Kirkus, starred review

"Harper makes it clear that despite the angst, Charise and Daniel have an unbreakable bond, and she deftly conveys the sibling dynamic: One minute the two are squabbling, the next they're secretly finding a way to communicate through the walls after bedtime." --School Library Journal, starred review

"Raw emotions of guilt, shame, and jealousy are explored, as young Charise interrogates the power dynamics of big sisterhood and recognizes Daniel's strengths."--Book Horn Magazine, starred review

"[...] The story takes a resonant dive into the insular world of children, especially siblings." --Publishers Weekly