Kevin Petrie is Professor of Glass and Ceramics and Head of the School of Art & Design at the University of Sunderland, UK. He was Programme Leader for the Masters programme in Glass and Ceramics at Sunderland for nine years and has supervised and examined many glass PhD students around the world. He is author of three books published by Bloomsbury: Glass and Print (2005), Ceramic Transfer Printing (2011) and The Ceramics Reader, co-edited with Andrew Livingstone (2017).

Jeffrey Sarmiento is an award-winning glass artist and Senior Lecturer in the School of Art and Design at the Australian National University, Canberra. He has been a Fulbright Fellow in Denmark, a lecturer at San Jose State University, USA and Associate Professor of Glass at University of Sunderland at the National Glass Centre, UK. A pioneer of print techniques for kiln glass, he has taught workshops internationally.