Monica Guggisberg and Philip Baldwin, partners in life and work, have established a worldwide reputation for glass installations and sculptures using ground-breaking techniques. In this episode, they talk about how they met and how their teamwork evolved, how they set up a glassworks in Switzerland before moving to Paris to concentrate on sculpture, how they developed their signature technique of cutting glass, how vessels became a key part of their designs, how more recent work since moving to Wales has been resonant of human cultural history going back to ancient civilisations.