John works primarily with silver, gold, and titanium. The techniques he uses include anticlastic raising, casting, chain making, etching, fold forming, forging, and stone setting.
He finds chains and chain mail particularly interesting because they combine art, mathematics, and construction techniques into each different chain pattern. There is art in the way the finished chain jewelry decorates the body. The mathematics comes into play in calculating the new ring size to use when changing the wire gauge in a particular pattern or creating a new pattern. The techniques needed to properly construct a pattern are like solving a jigsaw puzzle.