- Second Nature: The Inner Lives of Animals – by Jonathan Balcombe
- Pleasurable Kingdom: Animals and the Nature of Feeling Good – by Jonathan Balcombe
- The Emotional Lives of Animals – by Marc Bekoff
- The Inner World of Farm Animals – by Amy Hatkoff
- The Pig Who Sang to the Moon – by Jeffrey Masson
- Animals Matter – by Marc Bekoff
- The Animals’ Agenda – by Marc Bekoff
- Beyond Words – What Animals Think and Feel – by Carl Safina
- Mama’s Last Hug – by Frans de Waal
