Libby and her Nana do lots of fun activities together: read books, color pictures, plant flowers, and feed song birds. But as time passes, Libby starts to notice that Nana wears clothes that don't match. Nana forgets words in books. Nana mixes up names of birds. Libby finds out that her grandmother has Alzheimer's disease. With gentle reassurances and support from her family, Libby learns how the disease will ultimately affect her grandmother. She discovers ways to handle her feelings and worries, and she realizes that it is okay if she and her Nana wear striped shirts with flowered pants!