Big Cat, Little Cat by Elisha Cooper
This is a gentle picture book about the cycle of life, appropriate for young children. It tells the story of a household with a lone cat who add a second cat to their family. The two cats spend their time together and are happy. Many years go by, then the older cat passes away. The younger cat and the human members of the family are all sad, but then another cat, young like the surviving cat used to be, joins the household and the cycle repeats with an older cat and a younger cat bonding. A touching story about loving and grieving and life going forward after loss told with respect. Illustrated mainly in black and white, with one black cat and one white cat, and hints of color in the background.