We are growing!

Firefly & Fern Summary

In this delightful picture book by Mo Willems, young readers discover the wonder of growth through simple, engaging storytelling. As characters observe grasses and plants growing around them, children learn to appreciate the quiet miracles of nature and understand that growth happens all around us—even when we're not looking. With Willems' signature warmth and humor, this book celebrates observation, patience, and the beauty of change.