Arrayed within a baby’s hand–sized trim are the usual suspects of any beginning concept book—red, yellow, blue, orange and so on—along with a few oddballs. Done in the Caldecott Medalist’s distinctive style, a fish swims in an aqua sea, a boy plays in crimson pants, a lime green crayon waits for use and tan work boots regard lavender sneakers from across the gutter. Each object or set of objects is boldly drawn in ink, the color in question the only hue against the white background. While crimson may not occur to adults as a critical concept for a baby, why not? Taback challenges them to use rich vocabulary from the get-go, and good for him. Equally diminutive companion volumes are 1-2-3 (ISBN: 978-1-934706-89-3) and Animals (ISBN: 978-1-934706-87-9). (Ages 6-18 mos.)