There are many ways of seeing Earth. It is possible to gaze at the planet from the vantage of a space shuttle in orbit. If you are standing on the moon, you can see Earth rise in the distance, as seen in the famous photograph of Earth taken from the moon by the NASA astronaut William Anders in 1968, Earthrise (see Figure 1). You can also look at Earth much more closely, on a more minute level, observing the habitats and inhabitants of Earth as they appear at any moment, and in any context—urban, rural, or wild. You are looking at Earth when you see a meadow, a forest, a tree, a cat, a farm, a house, or the ground beneath your feet. Along with these different ways of visually perceiving Earth, there are also many ways of understanding Earth, spanning various fields of scientific research, the religious traditions of the world, and philosophical theories of nature. There is great diversity in how we can relate to the vast panoply of beings composing the life, land, air, and water of Earth. This book is a celebration and revitalization of that diversity.