| 0 | - | cover | 1 | pencils: Amanda Conner; inks: Amanda Conner; colors: Alex Sinclair | |
| 1 | - | credits, title page | 1 | pencils: Amanda Conner, Ransom Getty, Mike Parobeck, Ryan Benjamin, Jock, Federico Dallocchio; inks: Amanda Conner, Scott Hanna, Rick Burchett, Ryan Benjamin, Jock, Federico Dallocchio; colors: Alex Sinclair, Val Staples, Ryan Benjamin, Jock, Rick Taylor | Harley Quinn |
| 2 | - | credits, title page | 1 | pencils: ? (background); inks: ? (background); colors: ? (background); letters: typeset | |
| 3 | - | table of contents | 1 | pencils: ? (background); inks: ? (background); colors: ? (background); letters: typeset | |
| 4 | The Origin of Harley Quinn | comic story | 2 | script: Scott Beatty; pencils: Bruce Timm; inks: Bruce Timm; colors: Hi-Fi; letters: Ken Lopez; editing: Elisabeth V. Gehrlein | Harley Quinn [Harleen Quinzel]; Joker; Poison Ivy [Pamela Isley] |
| 5 | - | cover reprint (on interior page) | 1 | pencils: Mike Parobeck; inks: Rick Burchett; colors: Rick Taylor | Batgirl [Barbara Gordon]; Poison Ivy [Pamela Isley]; Harley Quinn [Harleen Quinzel] |
| 6 | Batgirl: Day One | comic story | 22 | script: Kelley Puckett; pencils: Mike Parobeck; inks: Rick Burchett; colors: Rick Taylor; letters: Tim Harkins; editing: Scott Peterson, Darren Vincenzo | Batman [Bruce Wayne] (cameo); James Gordon; Batgirl [Barbara Gordon]; Harley Quinn [Harleen Quinzel] (first printed appearance); Poison Ivy [Pamela Isley]; Sandy Vanocouer; Catwoman [Selina Kyle] |
| 7 | - | cover reprint (on interior page) | 1 | pencils: Jim Lee; inks: Scott Williams; colors: Alex Sinclair | Harley Quinn [Harleen Quinzel]; Batman [Bruce Wayne]; Catwoman [Selina Kyle] |
| 8 | - | illustration | 1 | pencils: Amanda Conner, Ransom Getty, Mike Parobeck, Ryan Benjamin, Federico Dallocchio; inks: Amanda Conner, Scott Hanna, Rick Burchett, Ryan Benjamin, Federico Dallocchio; colors: Alex Sinclair, Val Staples, Ryan Benjamin, Rick Taylor | Harley Quinn [Harleen Quinzel] |
| 9 | Hush, Chapter Six: The Opera | comic story | 22 | script: Jeph Loeb; pencils: Jim Lee; inks: Scott Williams; colors: Alex Sinclair; letters: Richard Starkings; editing: Bob Schreck, Morgan Dontanville | Batman [Bruce Wayne] (also in flashback); Alfred Pennyworth (cameo); Leslie Thompkins; Catwoman [Selina Kyle]; Hush [Thomas Elliot] (also in flashback); Harley Quinn [Harleen Quinzel]; Joker (cameo) |
| 10 | - | cover reprint (on interior page) | 1 | pencils: Guillem March; inks: Guillem March; colors: Guillem March | Catwoman [Selina Kyle] |
| 11 | Holiday Story | comic story | 22 | script: Paul Dini; pencils: David López; inks: Álvaro López; colors: Tomeu Morey; letters: Steve Wands; editing: Mike Marts, Janelle Siegel | Catwoman [Selina Kyle]; Harley Quinn [Harleen Quinzel]; Poison Ivy [Pamela Isley]; The Carpenter [Jenna Duffy]; Dick Grayson [Batman]; Robin [Damian Wayne]; Alfred Pennyworth; Mr. Quinzel (Harley's father); Sharon Quinzel (Harley's mother); Barry Quinzel (Harley's brother); Nicky; Jenny; Lamar Shult |
| 12 | - | cover reprint (on interior page) | 1 | pencils: Ryan Benjamin; inks: Ryan Benjamin; colors: Ryan Benjamin | Black Spider; Harley Quinn; King Shark |
| 13 | Kicked in the Teeth | comic story | 20 | script: Adam Glass; pencils: Federico Dallocchio, Ransom Getty; inks: Federico Dallocchio, Scott Hanna; colors: Val Staples; letters: Jared K. Fletcher; editing: Pat McCallum, Sean Mackiewicz | Suicide Squad [Black Spider; Deadshot [Floyd Lawton]; El Diablo [Chato Santana]; Harley Quinn; King Shark; Savant [Brian Durlin] (leaves team); Voltaic (first appearance)] (also as Task Force X); Amanda Waller; Batman [Bruce Wayne] (flashback); Black Canary [Dinah Lance] (flashback) |
| 14 | - | illustration | 1 | pencils: Amanda Conner, Ransom Getty, Mike Parobeck, Ryan Benjamin, Federico Dallocchio; inks: Amanda Conner, Scott Hanna, Rick Burchett, Ryan Benjamin, Federico Dallocchio; colors: Alex Sinclair, Val Staples, Ryan Benjamin, Rick Taylor | Harley Quinn [Harleen Quinzel] |
| 15 | Tease | comic story | 6 | script: Scott Snyder, James Tynion IV; pencils: Jock; inks: Jock; colors: Jock; letters: Sal Cipriano; editing: Mike Marts, Katie Kubert | Harley Quinn [Harleen Quinzel]; Joker |
| 16 | - | cover reprint (on interior page) | 1 | pencils: Amanda Conner; inks: Amanda Conner; colors: Alex Sinclair; letters: Tom Napolitano | Harley Quinn [Harleen Quinzel] |
| 17 | Tug a' War! | comic story | 22 | script: Amanda Conner, Jimmy Palmiotti; pencils: John Timms; inks: John Timms; colors: Paul Mounts; letters: Tom Napolitano; editing: Chris Conroy, Dave Wielgosz, Mark Doyle | Harley Quinn [Harleen Quinzel]; Deadshot [Floyd Lawton]; Nick Stanley; Sparrow Adaro; Vicki; Hannah; Sparrow's mother |
| 18 | - | cover reprint (on interior page) | 1 | pencils: Jim Lee; inks: Scott Williams; colors: Alex Sinclair | Harley Quinn [Harleen Quinzel]; Man-Bat [Kirk Langstrom] |
| 19 | Evil Anonymous | comic story | 30 | script: Rob Williams; pencils: Jim Lee, Sean "Cheeks" Galloway; inks: Scott Williams, Sandra Hope, Richard Friend, Sean "Cheeks" Galloway; colors: Alex Sinclair, Sean "Cheeks" Galloway; letters: Travis Lanham; editing: Andy Khouri, Harvey Richards, Brian Cunningham | Harley Quinn [Harleen Quinzel]; Justice League [Batman [Bruce Wayne]; Superman [Clark Kent]; Wonder Woman [Diana of Themyscira]; Green Lantern [Hal Jordan]; Cyborg [Victor Stone]; The Flash [Barry Allen]]; The Joker (flashback); Lex Luthor (flashback); Deathstroke (flashback); Man-Bat [Kirk Langstro |
| 20 | - | promo (ad from the publisher) | 1 | pencils: Jim Lee, Mike Parobeck, Amanda Conner, Ryan Benjamin; inks: Scott Williams, Mike Parobeck, Amanda Conner, Ryan Benjamin; colors: Alex Sinclair, Ryan Benjamin, Rick Taylor | Harley Quinn [Harleen Quinzel] |