Big Sister, Little Sister

Big Sister, Little Sister is LeUyen Pham's author debut — notable because she is already a Caldecott Honor–winning illustrator — and she uses that illustrative skill to carry the book's emotional weight. The younger sister narrates a cheerful list of how different she and her older sister are, but Pham's brush pen-and-ink artwork quietly layers in the affection underneath the bickering, so the ending lands with genuine warmth rather than sentimentality. Kirkus called it 'a frothy fun tale that at its heart shows the depth and breadth of these relationships as something to be cherished,' and nearly 60,000 hardcover copies sold confirm the book found its audience. The honest caveat is that this is more mood piece than story — there's not much plot, and the younger sibling's tone is lightly saucy in places. But for young children with siblings, or anyone who has been a little sister, it captures something real.