| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Good for Nothing: Understanding Altruists, Psychopaths and Everything in Between | 978-1-5416-9718-8 (1-5416-9718-9) | 2019 |
| The Fear Factor: How One Emotion Connects Altruists, Psychopaths, and Everyone In-Between | 978-1-5416-9719-5 (1-5416-9719-7) | 2017 |