| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2000 | 978-0-9677528-0-8 | Thomas E. Asacker | Sandbox Wisdom: Revolutionize Your Brand with the Genius of Childhood |
| 2001 | 978-0-9677528-1-5 | Erica Orloff | The Four Sides of Sandbox Wisdom: Building Relationships in an Age of Chaos, Complexity and Change |