A day with grandad showing in simple, beautiful images the bond between grandfather and child: a small hand in a big one, big gumboots and little, kai, korero and a snooze to finish Koro is a warm and universal board book in te reo Maori about a day with grandad. The bond between grandfather and child is shown through big, beautiful images and simple Maori text. The child and their koro explore the day - they go for a walk, collect food from the garden, eat, tell stories, and snuggle up for a rest to finish.