Put your wellies on and discover what makes mud so marvellous. Mud is so much more than squelchy brown stuff. It's why our food grows, why our forests stand tall, why our water and air are less dirty and why billions of living things have somewhere to live. This engaging new title encourages young readers and their grown-ups to delight in mud, to value it in a new way and to help protect the planet's soil for the future.