HarperCollins · Simon & Schuster
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Mental Floss: What's the Difference? | 978-0-06-088249-5 (0-06-088249-2) | 2006 | John Green · Maggie Koerth · Christopher Smith |
| Think to Win | 978-0-671-69717-4 (0-671-69717-X) | 1989 | John Syer |