Many of the art pieces Barb creates are done by applying and firing layers of powdered glass. This process starts with a sheet of clear glass with an outline of the finished piece. Barb adds a layer of powdered glass in different colors to fill in parts of the image, fires it in the kiln, and then returns it to the worktable for another round of powder layering and firing. Depending on the complexity of the image, Barb will repeat this process anywhere from 6 to 17 firings.
The images below show a project in various stages of the process. This particular piece took 9 firings from start to finish.