The National Gallery Technical Bulletin is a record of research carried out at the National Gallery, London. Published annually, this illustrated volume covers all aspects of the conservation, technical study and care of the paintings in the collection. Drawing on the combined expertise of curators, conservators and scientists, it brings together a wealth of information about artists' materials, working practices and techniques. It is a resource for conservators, art historians, collectors, museum curators and all those with an interest in old master paintings.