Hartman was born in Huntsville, Alabama. He graduated from Princeton University, then went on to study at the London School of Economics, then started a PhD in Finance at Duke University. Sometime around his third year of the finance program, he decided to change careers and become a writer.

Fiction

• The Gumshoe, The Witch, & The Virtual Corpse
• Gumshoe Gorilla - sequel.

Non-fiction

• Congregations In Conflict - an examination of churches split over the issue of homosexuality.

The Gumshoe, The Witch, & The Virtual Corpse

• Chosen as one of the eight best mysteries of 1999 by The Drood Review of Mysteries.
• Winner of Two Gaylactic Spectrum Awards ("Best Novel" and "People's Choice")
• Nominated for two Lambda Awards ("Best Science Fiction / Fantasy Book" and "Best Men's Mystery".)

Gumshoe Gorilla

• Nominated for a Lambda Award ("Best Science Fiction / Fantasy / Horror Book".)

Congregations In Conflict

• 1996 Lambda Award Nominee
• Number 2 on The Advocate Magazine's Bestseller List.