| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2000 | 978-1-58639-000-6 | Philippa Courtney | 4 Steps to bring the Right Person into your life Right Now! |
| '' | 978-1-58639-003-7 | '' | The 4 Steps Profile |
| '' | 978-1-58639-005-1 | '' | 4 Steps to bring the Right Person into your life Right Now! - The Complete Seminar System |