| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Rainbow Language: The Sight, Sound & Color of the Holy Tongue | 978-1-77143-239-9 (1-77143-239-X) | 2015 |
| The Serpent's Seed: They're Among Us | 978-1-77143-285-6 (1-77143-285-3) | 2016 |
D D · D. M. · D. P. · D. PH. · David D. · David M. · David Mathews · David P. · M.D · M P · Ph.D.