| 0 | - | cover | 1 | pencils: various; inks: various; letters: typeset | Superman; Batman; Robin; The Challengers of the Unknown [Rocky Davis; Prof. Haley; Red Ryan; Ace Morgan]; Adam Strange; Wonder Woman; John Jones; The Flash; Green Lantern; Green Arrow; Speedy |
| 1 | - | blank page(s) | 1 | | |
| 2 | DC Universe Secret Origins | credits, title page | 4 | pencils: various; inks: various; letters: typeset | The Flash; Wally West; Abin Sur; Superman; Robin; Aquaman; Batman; Ray Palmer; Eclipso; Wonder Woman; El Diablo; John Jones; Metamorpho; Green Lantern; a Guardian of the Universe; Superboy; Krypto; Aquaman; Dick Grayson; Kid Flash |
| 3 | Secret Origins | cover reprint (on interior page) | 1 | pencils: various; inks: various | Superman; Batman; Robin; The Challengers of the Unknown [Rocky Davis; Prof. Haley; Red Ryan; Ace Morgan]; Adam Strange; Wonder Woman; John Jones; The Flash; Green Lantern; Green Arrow; Speedy |
| 4 | Secret Origins | table of contents | 1 | pencils: various; inks: various; letters: typeset | Green Lantern; Ray Palmer; Aquaman |
| 5 | The Origin of the Superman - Batman Team | comic story | 12 | script: Edmond Hamilton; pencils: Dick Sprang; inks: Stan Kaye; letters: Pat Gordon | Superman [Clark Kent]; Batman [Bruce Wayne]; Robin [Dick Grayson]; Powerman (a robot); Lex Luthor (villain) |
| 6 | Secret of the Eternal City! | comic story | 14.34 | script: Gardner Fox, Edmond Hamilton; pencils: Mike Sekowsky; inks: Frank Giacoia, Joe Giella; letters: Gaspar Saladino | Adam Strange; Alanna; Sardath; The Eternals (aliens; villains) |
| 7 | The Planet of Doomed Men | comic story | 15 | script: John Broome; pencils: Gil Kane; inks: Murphy Anderson; letters: Gaspar Saladino | Green Lantern [Hal Jordan]; The Guardians; Calorians (aliens); The Dryg (villain) |
| 8 | The Secrets of the Sorcerer's Box! | comic story | 6 | script: Dave Wood, Joe Simon, Jack Kirby; pencils: Jack Kirby; inks: Roz Kirby, Marvin Stein, Jack Kirby; letters: Ben Oda | The Challengers of the Unknown [Rocky Davis; Prof. Haley; Red Ryan; Ace Morgan]; Morelian |
| 9 | Origin of Green Arrow and Speedy | text story | 1 | script: Jack Schiff; pencils: Lee Elias; inks: Lee Elias | Green Arrow [Oliver Queen]; Speedy [Roy Harper] |
| 10 | Secret Origin of Wonder Woman | comic story | 12.34 | script: Charles Moulton; pencils: Ross Andru; inks: Mike Esposito; letters: Gaspar Saladino | Wonder Girl [Princess Diana]; Queen Hippolyta; Aphrodite; Athena; Mercury; Hercules; Amazons |
| 11 | The Strange Experiment of Dr. Erdel | comic story | 6 | script: Joe Samachson, Jack Miller; pencils: Joe Certa; inks: Joe Certa; letters: Pat Gordon | John Jones [J'onn J'onzz]; Dr. Erdel; Lt. Saunders |
| 12 | Mystery of the Human Thunderbolt! | comic story | 12 | script: Robert Kanigher; pencils: Carmine Infantino; inks: Joe Kubert; letters: Gaspar Saladino | The Flash [Barry Allen]; Iris West; The Turtle Man (villain) |
| 13 | More Secret Origins | cover reprint (on interior page) | 1 | pencils: Murphy Anderson; inks: Murphy Anderson | Wonder Woman; Green Lantern; The Flash; Superman; Batman; J'onn J'Onzz; Green Arrow; Aquaman; Robin; The Atom; Superbaby; Superboy |
| 14 | More Secret Origins | table of contents | 1 | pencils: various; inks: various; letters: typeset | Robin; Batman; The Flash; Wally West; Hal Jordan |
| 15 | The Origin of the Justice League | comic story | 25 | script: Gardner Fox; pencils: Mike Sekowsky; inks: Bernard Sachs | J'Onn J'Onzz; Aquaman [Arthur Curry]; Wonder Woman [Diana Prince]; Green Lantern [Hal Jordan]; The Flash [Barry Allen]; Superman [Clark Kent]; Batman [Bruce Wayne]; Green Arrow [Oliver Queen]; Snapper Carr;aliens from Appellax (villains) |
| 16 | Birth of the Atom! | comic story | 9.67 | script: Gardner Fox; pencils: Gil Kane; inks: Murphy Anderson; letters: Gaspar Saladino | The Atom [Ray Palmer]; Jean Loring; nature club members |
| 17 | How Aquaman Got His Powers! | comic story | 6.67 | script: Robert Bernstein; pencils: Ramona Fradon; inks: Ramona Fradon | Aquaman [Arthur Curry]; Tom Curry; Atlanna Curry; Commander Haskel |
| 18 | The Man from Robin's Past | comic story | 7.67 | script: Bill Finger; pencils: Sheldon Moldoff; inks: Charles Paris; letters: Stan Starkman | Batman [Bruce Wayne]; Robin [Dick Grayson] Sandor; Andy; Art Colby (villain); Limey Lou (villain) |
| 19 | The Origin of The Flash's Masked Identity! | comic story | 7 | script: John Broome; pencils: Carmine Infantino; inks: Joe Giella | The Flash [Barry Allen]; art thieves (villains) |
| 20 | The Story of Superman's Life! | comic story | 12.67 | script: Otto Binder; pencils: Al Plastino; inks: Al Plastino | Superman [Clark Kent]; Jor-El; Lara; Martha Kent; Jonathon Kent; Lana Lang; Krypto |
| 21 | Don't Give Fire a Place to Start! | public service announcement | 1 | script: Jack Schiff; pencils: Win Mortimer; inks: Win Mortimer | Superboy; members of the Smallville Teen-Age Club |
| 22 | Even More Secret Origins | cover reprint (on interior page) | 1 | letters: Todd Klein | Eclipso [Bruce Gordon]; Jimmy Olsen; Robin [Dick Grayson]; Hawkman [Katar Hol/Carter Hall]; Hawkgirl [Shayera Hol/Shierra Hall]; Kid Flash [Wally West]; Blackhawk; Green Lantern [Hal Jordan] |
| 23 | Even More Secret Origins | table of contents | 1 | pencils: various; inks: various; letters: typeset | Superman; The Flash; Kid Flash; J'Onn J'Onzz |
| 24 | The Olsen-Robin Team Versus "The Superman-Batman Team!" | comic story | 17 | script: Edmond Hamilton; pencils: Curt Swan; inks: George Klein; letters: Joe Letterese | Superman [Clark Kent]; Jimmy Olsen; Batman [Bruce Wayne]; Robin [Dick Grayson] |
| 25 | Origin of the Blackhawks | text story | 1 | pencils: Dick Dillin; inks: Chuck Cuidera | The Blackhawks [Blackhawk; Andre; Stanislaus; Hendrickson; Chop-Chop; Olaf; Chuck] |
| 26 | Meet Kid Flash! | comic story | 11.67 | script: John Broome; pencils: Carmine Infantino; inks: Joe Giella | The Flash [Barry Allen]; Iris West; Kid Flash [Wally West] |
| 27 | The Genius Who Fought Himself | comic story | 13.67 | script: Bob Haney; pencils: Lee Elias; inks: Lee Elias | Eclipso [Dr. Robert Gordon]; Prof. Bennett; Mona Bennett |
| 28 | The Origin of Green Lantern's Oath! | comic story | 9.67 | script: John Broome; pencils: Gil Kane; inks: Murphy Anderson; letters: Gaspar Saladino | Green Lantern [Hal Jordan]; Pieface [Thomas Kalmaku] |
| 29 | Creature of a Thousand Shapes! | comic story | 24.67 | script: Gardner Fox; pencils: Joe Kubert; inks: Joe Kubert; letters: Gaspar Saladino | Hawkman [Katar Hol/Carter Hall]; Hawkgirl [Shayera Hol/Shierra Hall]; Police Commissioner George Emmett; Mavis Trent; Byth (villain) |
| 30 | - | illustration | 1 | pencils: various; inks: various | Wally West; The Flash; Abin Sur; Robin; Superman; Aquaman; Batman; Ray Palmer; Eclipso; Wonder Woman; El Diablo; J'Onn J'Onzz |
| 31 | Weird Secret Origins | cover reprint (on interior page) | 1 | pencils: Jerry Ordway; inks: Jerry Ordway; colors: Sno Cone | The Spectre; Congorilla; The Enchantress; El Diablo; Buddy Baker; Dr. Fate |
| 32 | Weird Secret Origins | table of contents | 1 | pencils: various; inks: various; letters: typeset | Robin; Batman; The Flash; Wally West; Hal Jordan |
| 33 | The Origin of ... Doctor Fate | comic story | 6 | script: Gardner Fox; pencils: Howard Sherman; inks: Howard Sherman; letters: Howard Sherman | Doctor Fate [Kent Nelson]; Sven Nelson; Nabu; Inza; Black Nergal (villain) |
| 34 | The Enchantress of Terror Castle | comic story | 8.67 | script: Bob Haney; pencils: Howard Purcell; inks: Sheldon Moldoff; letters: Stan Starkman | The Enchantress [June Moone]; Alan Dell; Dzamor (not named in story); evil presence (villain) |
| 35 | I Was the Man with Animal Powers | comic story | 15.34 | script: Dave Wood; pencils: Carmine Infantino; inks: George Roussos; letters: Stan Starkman | Buddy Baker; Roger; Ellen; alien (villain) |
| 36 | The Tricks of Metamorpho's Trade | comic story | 2 | pencils: Ramona Fradon; inks: Charles Paris | Batman; Metamorpho |
| 37 | The Amazing Congorilla! | comic story | 6.5 | script: Jack Miller; pencils: Howard Sherman; inks: Howard Sherman | Congorilla [Congo Bill]; Chief Kawolo; golden gorilla; Mr. Reiger |
| 38 | Call Him Satan -- Call Him Saint | comic story | 16 | script: Robert Kanigher; pencils: Gray Morrow; inks: Gray Morrow; letters: Ben Oda | El Diablo [Lazarus Lane]; Albert; Nora; Wise Owl; The Hanged Man (villain); gunmen (villains) |
| 39 | The Origin of the Bizarro World! | comic story | 4 | pencils: Wayne Boring, John Forte; inks: Stan Kaye, John Forte | Bizarro-1; Bizarro Lois Lane-1; other Bizarros |
| 40 | - | comic story | 10 | script: Jerry Siegel; pencils: Bernard Baily; inks: Bernard Baily; letters: Bernard Baily | Jim Corrigan; Wayne Grant; Clarice Winston; Gat Benson (villain); gangsters (villains) |
| 41 | - | comic story | 10 | script: Jerry Siegel; pencils: Bernard Baily; inks: Bernard Baily; letters: Bernard Baily | The Spectre [Jim Corrigan]; Wayne Grant; Clarice Winson; Gat Benson (villain); gangsters (villains) |
| 42 | - | illustration | 1 | pencils: various; inks: various | Wally West; The Flash; Abin Sur; Robin; Superman; Aquaman; Batman; Ray Palmer; Eclipso; Wonder Woman; El Diablo; J'Onn J'Onzz |
| 43 | Grant Morrison | promo (ad from the publisher) | 1 | letters: typeset | |
| 44 | JLA: The Greatest Stories Ever Told | promo (ad from the publisher) | 1 | letters: typeset | |
| 45 | Geoff Johns | promo (ad from the publisher) | 1 | letters: typeset | |
| 46 | - | blank page(s) | 1 | | |
| 47 | - | promo (ad from the publisher) | 1 | pencils: various; inks: various; letters: typeset | Wally West; The Flash; Abin Sur; Robin; Superman; Aquaman; Batman; Ray Palmer; Eclipso; Wonder Woman; El Diablo; J'Onn J'Onzz |