CreateSpace Independent Publishing Platform · Various small imprints
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Television Crossover Universe: Worlds and Mythology Volume I | 978-1-5177-2550-1 (1-5177-2550-X) | 2015 |
| The Horror Crossover Encyclopedia | 978-0-692-40269-6 (0-692-40269-1) | 2014 |
E. J. · R. E. · R.J. · Robert E. · Robert J. · Robert W. · W.J.