Mason's first book of non-fiction, Head Cases: Stories of Brain Injury and Its Aftermath, chronicles the years he spent as a brain-injury case manager and tells the stories of twelve individuals who survived brain injury.

While a contributing editor for Discover magazine, Mason wrote the article, "Dead Men Walking", which triggered a national debate about the treatment of brain-injured veterans of the Iraq War.

As an independent radio producer, Mason has created works that have appeared on several public radio stations. Mason is also the creator of a popular weekly podcast called Goodbye Tulsa, which tells the story of Tulsa through the lives of citizens who have died.

Books

• Head Cases: Stories of Brain Injury and Its Aftermath (Farrar, Straus and Giroux, 2008)

Articles

• "Dead Men Walking", Discover (2007)
• "Iraq's Medical Meltdown", Discover (2007)
• "The 9/11 Cover-Up", Discover (2007)
• "How to Teach Science to the Pope", Discover (2008)
• "Keeping Our Heads" (op-ed), The New York Times (2009)
• "The Disappearance of Ford Beckman", The Believer (2009)