| 0 | - | cover | 1 | pencils: Dick Sprang, Jack Kirby, Gil Kane, Joe Certa, Lee Elias, Carmine Infantino; inks: Jerry Ordway, Stan Kaye, Jack Kirby, Gil Kane, Joe Giella, Joe Certa; colors: Rick Taylor | Superman [Clark Kent]; Batman [Bruce Wayne]; Robin [Dick Grayson]; Challengers of the Unknown [Ace Morgan; Prof Haley; Red Ryan; Rocky Davis]; Adam Strange; Wonder Woman [Diana Prince]; Martian Manhunter [J'onn J'onzz; aka John Jones]; Flash [Barry Allen]; Green Lantern [Hal Jordan]; Green Arrow [Ol |
| 1 | Guilty Pleasures Revealed! | foreword, introduction, preface, afterword | 1 | script: Richard Bruning | |
| 2 | The Origin of the Superman-Batman Team | comic story | 12 | script: Edmond Hamilton; pencils: Dick Sprang; inks: Stan Kaye | Superman [Clark Kent]; Batman [Bruce Wayne; also as Superman]; Robin [Dick Grayson]; Powerman (a robot, introduction); Lex Luthor (villain) |
| 3 | Secret of the Eternal City | comic story | 15 | script: Gardner Fox, Edmond Hamilton; pencils: Mike Sekowsky; inks: Frank Giacoia, Joe Giella; letters: Gaspar Saladino | Adam Strange (introduction, origin); Alanna [aka Allana] (introduction); Sardath (Alanna's father scientist, introduction); inhabitants of Samakand; The Eternals (villains) |
| 4 | The Planet of Doomed Men | comic story | 15 | script: John Broome; pencils: Gil Kane; inks: Murphy Anderson; letters: Gaspar Saladino | Green Lantern [Hal Jordan] (origin recap); The Guardians of the Universe (introduction); Green Lantern [Abin Sur] (flashback); Calorians; The Dryg (villain) |
| 5 | The Secrets of the Sorcerer's Box! | comic story | 6 | script: Dave Wood; pencils: Jack Kirby; inks: Roz Kirby, Marvin Stein; letters: Ben Oda | Challengers of the Unknown [Ace Morgan; Prof Haley; Red Ryan; Rocky Davis] (introduction for all, origin); un-named sailors; un-named citizens; Mr. Morelian (villain, introduction, death) |
| 6 | Origin of Green Arrow and Speedy | text story | 1 | script: Jack Schiff; pencils: Lee Elias; inks: Lee Elias | Green Arrow [Oliver Queen] (head shot); Speedy [Roy Harper] (head shot) |
| 7 | Secret Origin of Wonder Woman | comic story | 13 | script: Robert Kanigher; pencils: Ross Andru; inks: Mike Esposito; letters: Gaspar Saladino; editing: Robert Kanigher | Wonder Woman [Diana Prince; also as Wonder Girl]; Hippolyta; Aphrodite; Athena; Mercury; Hercules |
| 8 | The Strange Experiment of Dr. Erdel | comic story | 6 | script: Joe Samachson; pencils: Joe Certa; inks: Joe Certa; letters: Pat Gordon | Martian Manhunter [J'onn J'onzz; aka John Jones] (introduction, origin); Dr. Mark Erdel (introduction, death); Lt. Saunders |
| 9 | Mystery of the Human Thunderbolt | comic story | 12 | script: Robert Kanigher; pencils: Carmine Infantino; inks: Joe Kubert; letters: Gaspar Saladino | The Flash [Barry Allen] (introduction, scientist, origin); The Flash [Jay Garrick] (image only); Iris West (introduction); The Turtle Man [aka later as The Turtle] (villain, introduction) |