| 0 | - | cover | 1 | pencils: Ed McGuinness; inks: Cam Smith | Superman; Joker |
| 1 | - | cover reprint (on interior page) | 1 | pencils: Ed McGuinness; inks: Cam Smith; colors: Ian Hannin | Superman; Bizarro |
| 2 | Superman: Arkham, Part One: It's a Mad, Mad, Mad World! | comic story | 22 | script: Jeph Loeb; pencils: Ed McGuinness; inks: Cam Smith; colors: Richard Horie, Tanya Horie; letters: Richard Starkings | Superman; Lois Lane; Joker League of Anarchy [Bizarro; Bounty; Scorch; Gravedigger Lad [Jimmy Olsen]]; Mr. Mxyzptlk; Solomon Grundy; Officer Day; Hopeless; Merciless; Aquaman |
| 3 | - | cover reprint (on interior page) | 1 | pencils: Ed McGuinness; inks: Cam Smith; colors: Richard Horie, Tanya Horie | Supergirl; Scorch |
| 4 | Superman: Arkham, Part Two: Crazy About You | comic story | 22 | script: J. M. DeMatteis; pencils: Mike Miller; inks: José Marzán Jr.; colors: Wildstorm FX; letters: Bill Oakley | Superman; Lois Lane; Supergirl [as Niece Matrix]; Mr. Mxyzptlk; Joker League of Anarchy [Skizm; Scorch; Gorgreous Gilly; Bounty; Ignition; Poison Ivy; Bizarro; Enigma]; Auntie Better-Than-We Are; Niece Lucy; Dr. Erdel; Prof. Emil Hamilton; Jimmy Olsen [also as The Giant Turtle Boy]; The Turtle; The |
| 5 | - | cover reprint (on interior page) | 1 | pencils: Ed McGuinness; inks: Cam Smith; colors: Richard Horie, Tanya Horie | Steel [John Henry Irons]; Bounty |
| 6 | No Axioms | comic story | 22 | script: Mark Schultz; pencils: Doug Mahnke; inks: Tom Nguyen, John McCrea; colors: Wildstorm FX; letters: Ken Lopez | Superman; Lois Lane; Steel [John Henry Irons]; Skizm; Gorgeous Gilly; Bounty; Bizarro; Mr. Mxyzptlk; Veridium (cameo); The Atom [Ray Palmer] (cameo); Swamp Thing (cameo) |
| 7 | - | cover reprint (on interior page) | 1 | pencils: Ed McGuinness; inks: Cam Smith; colors: Richard Horie, Tanya Horie | Superboy; Ignition |
| 8 | Superman: Arkham, Part Four: Supermanamrepus | comic story | 22 | script: Joe Kelly; pencils: Kano; inks: Marlo Alquiza; colors: Wildstorm FX; letters: Comicraft | Superman [Clark Kent; Kal-El]; Lois Lane; Superboy [Kon-El]; Steel; Guardian; Justice League of America [Flash [as The Flab]; Green Lantern [Kyle Rayner; as Yellow Paper Lantern]; Martian Manhunter; Wonder Woman; Plastic Man; Green Arrow; Black Lightning; Catwoman]; Joker League of Anarchy [Poison I |
| 9 | - | cover reprint (on interior page) | 1 | pencils: Ed McGuinness; inks: Cam Smith; colors: Tanya Horie, Richard Horie | Joker; Mr. Mxyzptlk |
| 10 | It's a Joker World, Baby, We Just Live in It! | comic story | 38 | script: Joe Kelly, Jeph Loeb; pencils: Duncan Rouleau, Todd Nauck, Carlo Barberi, Scott McDaniel; inks: Marlo Alquiza, Jaime Mendoza, Richard Bonk; colors: Tanya Horie, Richard Horie; letters: Richard Starkings | Superman [Clark Kent; Kal-El]; Lois Lane; Steel [John Henry Irons]; Supergirl; Superboy [Kon-El]; Justice League of America [Aquaman; Wonder Woman; Flash [Wally West; as The Flab]; Martian Manhunter; Plastic Man; Green Lantern [Kyle Rayner; as Yellow Paper Lantern]]; Quintessence [Ganthet; Shazam; H |
| 11 | - | cover reprint (on interior page) | 1 | pencils: Kano; inks: Danny Miki; colors: Tanya Horie, Richard Horie | Superman; Joker |
| 12 | The Reign of Emperor Joker, Part Six: You Say You Want a Revolution? | comic story | 22 | script: Jeph Loeb; pencils: Ed McGuinness; inks: Cam Smith; colors: Tanya Horie, Richard Horie; letters: Richard Starkings | Superman [Clark Kent; Kal-El]; Lois Lane; Superboy [Kon-El]; Supergirl; Steel [John Henry Irons]; Batman [Bruce Wayne]; Aquaman; Aqualung Lad; Joker; Harley Quinn; Lex Luthor; Bizarro; Skizm; Gravedigger Lad [Jimmy Olsen]; Gorgeous Gilly; Bounty; Ignition |
| 13 | - | cover reprint (on interior page) | 1 | pencils: Kano; inks: Andy Lanning; colors: Tanya Horie, Richard Horie | |
| 14 | The Reign of Emperor Joker, Part Seven: Life Is but a (Very Bad) Dream | comic story | 22 | script: J. M. DeMatteis; pencils: Mike Miller; inks: Armando Durruthy; colors: Wildstorm FX; letters: Bill Oakley | Superman [Clark Kent; Kal-El]; Lois Lane; Superboy [Kon-El]; Supergirl; Steel [John Henry Irons]; Batman [Bruce Wayne]; Justice League of America [Wonder Woman; Green Lantern [Kyle Rayner; as Yellow Paper Lantern]; Aquaman; Flash [Wally West; as The Flab]; Plastic Man; Martian Manhunter]; Mr. Mxyzpt |
| 15 | - | cover reprint (on interior page) | 1 | pencils: Kano; inks: Drew Geraci; colors: Richard Horie, Tanya Horie | Batman |
| 16 | Emperor Joker, Part 8: All the World His Stage | comic story | 22 | script: Mark Schultz; pencils: Doug Mahnke; inks: Tom Nguyen; colors: Wildstorm FX; letters: Ken Lopez | Superman; Lois Lane; Superboy [Kon-El]; Supergirl; Steel [John Henry Irons]; Batman; The Spectre [Hal Jordan]; Justice League of America [Wonder Woman; Martian Manhunter; Aquaman; Flash [Wally West; also as The Flab]; Green Lantern [Kyle Rayner; also as Yellow Paper Lantern]; Plastic Man]; Joker; Ha |
| 17 | - | cover reprint (on interior page) | 1 | pencils: Kano; inks: Marlo Alquiza; colors: Richard Horie, Tanya Horie | Superman; Joker |
| 18 | The Reign of Emperor Joker, Part Nine: He Who Laughs Last! | comic story | 38 | script: Joe Kelly; pencils: Kano; inks: Marlo Alquiza; colors: Moose Baumann; letters: Richard Starkings | Superman; Lois Lane; Jimmy Olsen; Perry White; Batman [Bruce Wayne]; Justice League of America [Plastic Man; Green Lantern [Kyle Rayner]; Martian Manhunter; Wonder Woman; Flash [Wally West]; Aquaman]; Spectre [Hal Jordan]; Joker; Harley Quinn; Joker League of Anarchy [Ignition; Bizarro; Enigma; Skor |
| 19 | The Codex Comicon | foreword, introduction, preface, afterword | 1 | script: Joe Kelly | |