Cosby self-published his first novel,
Brotherhood of the Blade, in 2014. His first traditionally published novel,
My Darkest Prayer, was released in 2018 by a small press. His career breakthrough came after he impressed agent Josh Getzler during a crime writing symposium. Getzler was able to place Cosby's second novel,
Blacktop Wasteland, with
Flatiron Books. This was followed by
Razorblade Tears in 2021,
All the Sinners Bleed in 2023, and
King of Ashes in 2025. Cosby's writing is informed by his experiences growing up and living in
the South. His works explore masculinity, racism, and the tension between Southern history and the present. Cosby says of the South: "If there's a place that is more haunted by its past and more overwhelmed by its original sin than the South, I'm unaware of it." ==Awards and accolades==