| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Talking to Humans: Success starts with understanding your customers | 978-0-9908009-2-7 (0-9908009-2-X) | 2014 |
| Testing with Humans: How to use experiments to drive faster, more informed decision making. | 978-0-9908009-3-4 (0-9908009-3-8) | 2018 |