Sadie and Ratz

A piercingly intelligent foray into chapter books...for big sisters and Baby Boys adjusting to each other. A real slice of family life, the sweet with the bitter.
—Kirkus Reviews (starred review)

Lindgren Award–winner Hartnett has been writing for younger and younger readers in recent years, but whether her audience is teenagers, middle-graders, or now chapter-book readers, she remains willing to expose humanity’s more selfish and destructive tendencies, while handling such themes in a way that’s on-target and appropriate for her audience.
—Publishers Weekly (starred review)

Hartnett adeptly conveys the pain and loneliness of an older sibling facing a monumental moment of change and captures what growing up really means to a child. This joyful choice for reading aloud serves as a discussion starter on coping, acceptance, and maturity, and as an instruction manual on personal narratives. There are myriad ways to appreciate this pitch-perfect story.
—School Library Journal (starred review)

This tale of temper and self-control, told in the first person, is more psychologically sophisticated than is usually found in an early chapter book, but the sensitive drawings and clever book design add significantly to the emotional clarity of Hannah’s journey.
—The Horn Book

Australian Hartnett, winner of the 2008 Astrid Lindgren Memorial Award, writes convincingly of sibling rivalry and imaginative play. James’ black-and-white sketches feature mischievous hand-shadows and convey a wide range of emotions, from Hannah’s smoldering anger to Baby Boy’s sly cleverness.
—Booklist

A Sendakian tale... This, an outstanding chapter book for early readers, is the kind of good writing that all young children deserve.
—Kirkus Reviews Children's Blog

This could be a useful tool for helping young children deal with aggression or explore the complications of sibling dynamics.
—Bulletin of the Center for Children's Books

Pretty much the best book for kids published in America in the year 2012.... A beautiful bit of psychology that will undoubtedly lead to great discussions. Don’t miss it.
—A Fuse #8 Production (SLJ blog)