In 2000, inspired by the American sculptor Augustus Saint Gaudens, Glass retired as a prosecutor and began work as a professional artist.

Combining his love of history and art, he conceived of, designed, and created the Kentucky Medal of Honor Memorial ,[1][2] a life-size representation of WWII MOH recipient John Squires, and, later, the Texas Medal of Honor Memorial.,[3] a heroic size representation of Korean War MOH recipient George O'Brien Jr.

Inspired by the heroes honored by these memorials and by Lon Tinkle's account of the Battle of the Alamo that he had read many years before, Glass authored two nonfiction books about the men who fought in the Vietnam War.

[4] Both Swift Sword and Lions of Medina have spent multiple weeks at the top of the Amazon bestseller lists for the Vietnam War, as well as numerous other categories.

His third book, Unthrottled, a historical fiction work based on the remarkable life of WWII hero Robert Benoist, is due to be released in 2026.