He has edited magazines including Comics & Games Retailer, Comics Buyer's Guide, and Scrye: The Guide to Collectible Card Games, and written books including The Standard Catalog of Comic Books. He also researches comic-book circulation figures on his history site The Comics Chronicles. His first professional comics work appeared in 2003 in Crimson Dynamo for Marvel Comics, which led to a run on Iron Man. His first Star Wars work appeared in 2005 in Star Wars: Empire.
Miller also wrote the comic adaptation of Indiana Jones and the Kingdom of the Crystal Skull in 2009.
In 2015, Miller released his first Star Trek novel, Star Trek: The Next Generation: Takedown, to greatly positive reader acclaim.
His most recent book will be Batman: Resurrection, an original novel set in between the 1989 live action film adaptation of Batman and it's 1992 sequel Batman Returns, due for release in late 2024.
The look of this Galactic Republic helmsman on the Courageous, who was later retconned into Carth Onasi, was based on John Jackson Miller.
- Knights of the Old Republic 0
- Star Wars: Knights of the Old Republic: Commencement
- Star Wars: Knights of the Old Republic: Flashpoint
- Knights of the Old Republic 9
- Star Wars: Knights of the Old Republic: Reunion
- Star Wars: Knights of the Old Republic: Days of Fear
- Star Wars: Knights of the Old Republic: Nights of Anger
- Star Wars: Knights of the Old Republic: Daze of Hate
- Star Wars: Knights of the Old Republic: Knights of Suffering
- Star Wars: Knights of the Old Republic: Vector
- Star Wars: Knights of the Old Republic: Exalted
- Knights of the Old Republic 31
- Star Wars: Knights of the Old Republic: Vindication
- Star Wars: Knights of the Old Republic: Prophet Motive
- Knights of the Old Republic 38
- Star Wars: Knights of the Old Republic: Dueling Ambitions
- Knights of the Old Republic 42
- Star Wars: Knights of the Old Republic: The Reaping
- Star Wars: Knights of the Old Republic: Destroyer
- Star Wars: Knights of the Old Republic: Demon
- Star Wars: Knights of the Old Republic: War
- Star Wars: Knight Errant: Aflame
- Knight Errant
- Star Wars: Knight Errant: Deluge
- Star Wars: Knight Errant: Escape
- Lost Tribe of the Sith: Precipice
- Lost Tribe of the Sith: Skyborn
- Lost Tribe of the Sith: Paragon
- Lost Tribe of the Sith: Savior
- Lost Tribe of the Sith: Purgatory
- Lost Tribe of the Sith: Sentinel
- Lost Tribe of the Sith: Pantheon
- Lost Tribe of the Sith: Secrets
- Lost Tribe of the Sith: Pandemonium
- Star Wars: Lost Tribe of the Sith: The Collected Stories
- Star Wars: Lost Tribe of the Sith—Spiral
- "Labor Pains"
- "Interference"
- "The Secret Journal of Doctor Demagol"
- "Knight Errant: Influx"
- "Incognito" — Star Wars Insider 143
- "Orientation" — Star Wars Insider 157
- "Bottleneck" — The Rise of the Empire
- "Rites" — From a Certain Point of View
- "The Ride"
- "Lord Vader Will See You Now" — From a Certain Point of View: The Empire Strikes Back
- Empire 35
- Knights of the Old Republic Campaign Guide
- Sword of the Empire
- The Knight Errant Gazetteer
- "Mind Your Manners" — Star Wars Adventures Annual 2018
- "Launchpad" — Star Wars Insider 150
- "Rebel Rouser" — Star Wars Insider 152
- "The Making of A New Dawn" — Star Wars Insider 152
- "Blaster" — Star Wars Insider 152
- "200 Reasons Why We Love Star Wars" — Star Wars Insider 200
- "Launchpad" — Star Wars Insider 213
- "Launchpad" — Star Wars Insider 222
- "Launchpad" — Star Wars Insider 223