5Help children cultivate a practice of gratitude and a sense of wonder for the world around them with Goodness Gracious: A Gratitude Book for Children. Meaningful, sweet, and sometimes downright silly, Kathleen A. Green's "thankful thoughts," her kid-friendly term for expressions of gratitude, help children say thank you for all aspects of their lives, from the earth and their families to their pets, teachers, and even mac and cheese Perfect for children ages 3-8.