[1][2] Born in Philadelphia, Shepherd sold his first published writing to the science fiction magazine Analog.
It was a short story called "Summer Hopes, Winter Dreams" and appeared in the March 1991 issue.
His next three books, the Society of Humanity series (The First Casualty in 1999, The Price of Peace in 2000, and They Also Serve in 2001) sold better, at over 10,000 copies each, but not as high as was hoped.
[4] His third and ongoing series, published as "Mike Shepherd", covers the exploits of Kris Longknife, a rich young naval officer who struggles to deal with the expectations and reputation of her famous family of military leaders, politicians, and billionaires.
In a review for Tor.com, Liz Bourke described the series as "pure fluff" of the good kind, that is, intellectually lightweight but "entertainingly sticky, full of implausible successes, assassins, fleet actions and daredevil do-or-die gallantry".