Babies are on the move, "Strolling in buggies and backpacks and slings, / Rolling in store aisles in car seats and things." For readers up to 6, this affectionate look at that special time in a baby or toddler's life may bring back fond and fairly recent memories. Here families of different cultures and backgrounds are out and about, walking in the park or riding the subway, shopping at the supermarket or cruising through a garden. Fleet rhymes by the author of Hush, Baby, Hush! are well paired here with Lauren Tobia's bustling scenes, which are filled with expressive faces and interesting details.