(3) PS Illustrated by Karen Klassen. In this inevitable but welcome follow-up to You Are One and You Are Two, second-person narration salutes the achievements of three-year-olds ("You make pictures of what you see so that we can see it, too"). As always, O'Leary's text stops short of sap, and Klassen's collage-style art, with its photographic, fabric, and drawn elements, still stands out for its originality.

Reviewer: Nell Beram

(3) PS Illustrated by Karen Klassen. Second-person reflections describe a baby's accomplishments at the one-year mark (e.g., "You sometimes talk in sentences, but not always in words"); Klassen switches up the babies in the collage-style art, which features what appear to be photographic, stamped, and drawn elements. O'Leary's text manages not to be mawkish.

Reviewer: Nell Beram

(3) PS Illustrated by Karen Klassen. In this logical follow-up to You Are One, second-person narration acknowledges two-year-olds' newfound independence and intellectual milestones (e.g., "Now that you are two, you are learning about yesterday, today, and tomorrow"). O'Leary once again steers clear of treacle with her tribute, and Klassen's collage-style art, featuring photographic and fabric motifs, reinforces her toddler subjects' constant motion.

Reviewer: Nell Beram