Robert Greenberger
| Item | Date | Publisher | Price | Role |
|---|---|---|---|---|
| Crisis on Infinite Earths #1 (Facsimile Edition George Perez Cover) | April 17, 2024 | DC Comics | $3.99 | Writer |
| Crisis on Infinite Earths #1 (Facsimile Edition Blank Cover) | April 17, 2024 | DC Comics | $4.99 | Writer |
| Above the Ground | Nov. 16, 2022 | Heavy Metal | $19.99 | Writer |
| After Earth: Innocence | Oct. 17, 2012 | Dynamite Entertainment | Unknown | Writer |
| Above the Ground | Nov. 16, 2022 | Heavy Metal | $19.99 | Illustrator |
