Efnisyfirlit

• Cover
• Title
• Contents
• Introduction: A New Science
• One: Fierce Attachment
• Two: Building a Social Brain
• Three: Friendship under the Skin
• Four: Middle School Is about Lunch
• Five: A Deep Wish for Friendship
• Six: The Circles of Friendship
• Seven: Digital Friendship
• Eight: Born to Be Friendly?
• Nine: Deeply Built into the Brain
• Ten: The Good Life, Revealed
• Acknowledgments
• Notes
• Index
• Copyright