| Clue | Source | Date |
|---|---|---|
| Introductions | Newsday | 29 Dec 2019 |
| Literary prefaces | Universal | 14 Jul 2018 |
| Literary prefaces | ||
| Introductions | Universal | 06 Jul 2016 |
| Introductions | ||
| Literary prefaces | ||
| Introductions | ||
| Introductions | ||
| Introductory discourses | ||
| Introductions | ||
| Introductions | ||
| Prefaces | ||
| Forewords | ||
| Preludes | ||
| Introductions. | ||
| Prefaces. |