- Script
- Gardner Fox (credited)
- Pencils
- Gil Kane (credited); Mike Sekowsky (pp. 4-9, uncredited)
- Inks
- Murphy Anderson (credited)
- Colors
- ?
- Letters
- Gaspar Saladino
- Genre
- superhero
- Characters
- The Atom [Ray Palmer]; Ted Ralston; Karl Jat (villain); Moorn Jor
- Reprints
Story in two parts of 5.67 pages and 8.67 pages.
- Script
- ?
- Pencils
- ?
- Inks
- ?
- Colors
- ?
- Letters
- typeset
- Editing
- ?
- First Line of Dialogue or Text
- Your eyes may play tricks.... but not your taste!
- Feature Logo
- Tootsie Roll Pop
At the bottom of page 6 of the previous story sequence.
- Script
- ?
- Pencils
- ?
- Inks
- ?
- Colors
- ?
- Letters
- ?
- First Line of Dialogue or Text
- Featuring the mightiest super-heroes of all time!
- Genre
- superhero
On the page immediately following page 6 of the previous story sequence.
- Script
- Jack Schiff
- Pencils
- Sheldon Moldoff
- Inks
- Sheldon Moldoff
- Colors
- ?
- Letters
- Ira Schnapp
- Genre
- advocacy
- Synopsis
- How to treat frostbite, a black eye, and does cutting your hair make it grow faster?
On the page immediately preceding page 7 of the previous story sequence.
- Script
- Julius Schwartz (as Editor)
- Pencils
- ?
- Inks
- ?
- Colors
- ?
- Letters
- typeset
Letters of comment from readers Robert Malisani, John Santino Jr., Leonard Weiss, Gerry Desrosiers, Tommy Jones, Fred Bronson, Larry Switzer, and Paul Gambaccini, with replies from Schwartz.
- Script
- Gardner Fox (credited)
- Pencils
- Gil Kane (credited)
- Inks
- Murphy Anderson (credited)
- Colors
- ?
- Letters
- ?
- Genre
- superhero
- Characters
- The Atom [Ray Palmer]; Don Morgan; Jean Loring; Jon Van Dorn; Fred Harris (villain)
- Reprints
Pages 5 and 10 are 2/3 pages.
- Script
- ?
- Pencils
- ?
- Inks
- ?
- Colors
- ?
- Letters
- ?
- Genre
- non-fiction; math & science
On the page immediately following page 5 of the previous story sequence.
- Script
- ?
- Pencils
- ?
- Inks
- ?
- Colors
- ?
- Letters
- ?
- First Line of Dialogue or Text
- The battle tale which bursts the boundaries of war...
- Genre
- war
On the page immediately preceding page 6 of the previous story sequence.
- Script
- ?
- Pencils
- ?
- Inks
- ?
- Colors
- ?
- Letters
- ?
- First Line of Dialogue or Text
- 2nd smash appearance in Showcase!
- Genre
- science fiction
On the page immediately preceding page 6 of the previous story sequence.