Double the giggles and the fun-these sisters shine like the sun! Twirls, Whirls, and Sister Worlds are beautifully illustrated celebrations of the bond between two sisters. Whether twirling in matching dresses, tricking each other, or telling their favorite jokes, they are always up to something silly. Sure, they might argue from time to time, but nothing can come between their giggles and hugs. Growing up is an adventure-even better with your sister by your side!