This storybook explores the real-life characteristics and ecological significance of reindeer. It details their existence in frigid northern climates like Russia and Alaska. They are categorized into two main groups: tundra and woodland. One tundra subspecies is now extinct. The narrative describes the reindeer's lichen, grasses, and moss diet. It describes their impressive antlers, which both sexes grow, though males' are more prominent. The storybook describes how reindeer have evolved to endure cold environments. The story also highlights their domestication for purposes like milking and sleigh-pulling, as well as a food source. It concludes by emphasizing the threats to reindeer habitats from climate change and deforestation.