light made solid

Here is an audio download available on BBC's feature section. It is a discussion by Richard Marks, a medieval art historian at York University, and Peter Gibson, a stained glass conservator, exploring stories and messages hidden in the medieval stained glass of York Minster and the city's ancient Parish churches. It is a 17 minute audio file. York has been a famous centre for stained glass since the 12th century and I personally have heard Peter Gibson talk about his work restoring these windows on a trip he made to Pittsburgh for a Stained Glass Association of America's summer conference. Enjoy.