Linda Waters is Conservator Paintings at the Museum of New Zealand Te Papa Tongarewa and has particular interests in the treatment of paintings from the midtwentieth century onwards and how the material nature of artworks contributes to their narrative. She has expertise in the microscopy and analysis of paint crosssections and has undertaken research on artists pigments. Sarah Hillary is Principal Conservator at the Auckland Art Gallery Toi o Tamaki and specialises in the study of historical artists techniques. She has published research on New Zealand artists Colin McCahon, Rita Angus and Frances Hodgkins, and international artists James Tissot and Guido Reni. She has also been involved in curating exhibitions about artist techniques. Sarah is also a practising artist. Jenny Sherman is the Conservator at Dunedin Public Art Gallery and specialises in European Old Master paintings with particular emphasis on Italian works. She has carried out treatment and technical study of paintings ranging from the 13th century to the present day. She has worked at the Fine Arts Museums of San Francisco and the Conservation Center at New York University. She ran a private conservation practice in New York for many years before moving to New Zealand.