| Issue | #20 |
| Published | August-September 1965 |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Julius Schwartz |
| Characters | The Atom [Ray Palmer] |
| Genre | superhero |
| Pencils | Gil Kane |
| Inks | Murphy Anderson |
| Characters | The Atom [Ray Palmer]; Jean Loring; Rod Mack (villain) |
| Genre | superhero |
| Script | Gardner Fox |
| Pencils | Gil Kane |
| Inks | Sid Greene |
| Notes | Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. |
| Characters | The Atom [Ray Palmer]; Arthur Ennis; Dave Jones; Maya; "Sandy" Shore (villain) |
| Genre | superhero |
| Script | Gardner Fox |
| Pencils | Gil Kane |
| Inks | Sid Greene |
| Notes | Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. |
| Reprinted | in Rommets Helter (Se-Baldene, 1965 series) #1/1969 |