'The National Gallery Technical Bulletin' is a record of research carried out at the National Gallery, London. Published annually, and beautifully produced and illustrated, it 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. 'The Technical Bulletin' is resource for art historians, collectors, museum curators, and all those with an interest in old master paintings, as well as essential reading for conservators.