Brightly hued board books pay an understanding tribute to the expressions and emotions in a baby’s day. Colorful acrylic scenes show a diaper-clad baby with a singular strand of curled hair atop its head. The rosy-cheeked babe alternately smiles an ear-to-ear grin with a red balloon in hand (“Baby HAPPY”) and pouts with a forlorn frown as the balloon drifts skyward (“Baby SAD”). Similarly, the baby hears “No NO” when coloring on the walls (and on the pet dog) and an encouraging “Yes YES” when scribbling on paper. The fresh and funny books showcase the cadence and conversation while keeping up with a busy baby—one who likes to float toys in the toilet, dump dinner overhead, and wail at bedtime. These books ask to be read again and again—happy readers will cheer, “Yes YES!” (Ages birth–2)