Both my daughters loved it and begged me to buy "Smile" by the same author. They are stories set in cartoon format and the protagonist is the author. She writes about her experiences as an older child in a family of three.
Sisters is a great and very realistic story fpr kids around 8-11. Raina Telgemier makes the comics very detailed and easy to read. She is such a great author and illustrator with a fantastic and uplifting story.