Lucy and her grandfather are the focus of this poignant and warm story that teaches that wrinkles are badges of happiness rather than signs of age. Lucy asks Granddad, " Why doesn't your skin fit you? It' s all crinkly," to which he replies, " Those crinkles are called wrinkles," each of which he got when he smiled especially big. As Lucy traces Granddad' s joy-filled face, he describes his memories and shares the cause of each line— his wedding day, Lucy' s mother' s birth, precious moments from her childhood, and Lucy' s birth, among others. Beautiful drawings recreate each thoughtful memory, and the recollections showcase an intimate bond between the two generations.