Home Base: A Mother-Daughter Story by Nikki Tate; illus. by Katie Kath Primary    Holiday    32 pp. 3/20    978-0-8234-3663-7    $18.99 Although our two protagonists spend little of the book together, they are connected throughout by their hard work and achievement. This family of two starts the day in a groggy daze...

Could it be? A book with a trans character whose queer identity is not the sole storyline? Well, almost. But still, here it is — and a possible contender for the Caldecott Medal to boot. When Aidan Became a Brother is the story of a soon-to-be older sibling and his anxieties...