Beyond Words: What Animals Think and Feel
The Emotional Lives of Animals: A Leading Scientist Explores Animal Joy, Sorrow, and Empathy - and Why They Matter
Madness: A Brief History
Girl, Interrupted
The Pig Who Sang to the Moon: The Emotional World of Farm Animals
The Elephant Whisperer: My Life with the Herd in the African Wild
Are We Smart Enough to Know How Smart Animals Are?
Elephants on the Edge: What Animals Teach Us about Humanity
Elephant Memories: Thirteen Years in the Life of an Elephant Family
Animal Wise: How We Know Animals Think and Feel