J.M. Martin wrote comic books and worked on-staff at Caliber Press—publishers of The Crow, Deadworld, The Realm, Kabuki, and more—throughout the '90s; while there he co-created a collectible card game based on Todd McFarlane's SPAWN® universe.
He was a Gold ENnie-award-winning managing editor (2001–2005) for Privateer Press, instrumental in building the Iron Kingdoms and Warmachine intellectual properties from the ground up. He has also been a managing editor (2006–2008) for a nationally-syndicated magazine publisher called YOUnique, interviewing celebrities such as former UFC champion Rich Franklin and The Hunger Games movie star, Josh Hutcherson.
Martin co-writes the "Dead West" series with Tim Marquitz and Kenny Soward, and has penned short stories in Sails & Sorcery: Tales of Nautical Fantasy, Dark Heroes, Manifesto: UF, and Neverland's Library. He also has a couple science fiction novels forthcoming in 2015 from Permuted Press.