One Green Field - And Other Essays on the Appreciation of Nature

The World According to Bob: The further adventures of one man and his street-wise cat

American Buffalo: In Search of a Lost Icon

Animal Wise: The Thoughts and Emotions of Our Fellow Creatures

Running with Sherman: The Donkey with the Heart of a Hero

Our Zoo

Beyond Words: What Animals Think and Feel

Bitch: A Revolutionary Guide to Sex, Evolution and the Female Animal

How Animals Saved My Life: Being the Supervet: The perfect gift for animal lovers

Animal Madness: How Anxious Dogs, Compulsive Parrots, Gorillas on Drugs, and Elephants in Recovery Help Us Understand Ourselves

Listening to the Animals: Becoming The Supervet: The perfect gift for animal lovers

Animals Make Us Human: Creating the Best Life for Animals

A Yorkshire Vet Through the Seasons

The Lion in the Living Room: How House Cats Tamed Us and Took Over the World

The Dog Guardian: Your Guide to a Happy, Well-Behaved Dog

Birds, Vol. I, No 4, April 1897 (Unabridged): optional

The Daily Coyote: A Story of Love, Survival, and Trust in the Wilds of Wyoming

When Animals Rescue: Amazing True Stories About Heroic and Helpful Creatures

100 Animals That Can F*cking End You

The Inner Life of Cats: The Science and Secrets of Our Mysterious Feline Companions