"Russo flawlessly conveys the smug superiority of the 6-year-old sister, lording over her baby sibling in the baldly jealous spirit of Frances the badger."
The New York Times
Russo's characteristic bright gouache vignettes convey the siblings' trials and tribulations with cheerful humor. Stylized but expressive, the illustrations depict a wide range of feelings, from the sister's frustration with the baby's antics to quiet pride in helping her little brother at his birthday party to her resolve in waiting for him to grow up. Though the family members are depicted as bears, children with younger siblings will have no trouble identifying with the heroine.
School Library Journal