of an object in minutes. Engineers created a smaller, portable version, named the X-Duetto. Fitting into a few briefcase-sized boxes, it can examine objects on site, while preserving their physical integrity. It is now being used by Getty scientists to analyze a large collection of museum antiques and the Roman ruins of Herculaneum, Italy. Education and training Training of interested parties around the world is important for the sustainability of GCI's work. For example, GCI collaborated with other organizations to create a course "to assist museum personnel in safeguarding their collections from the effects of natural and human-made emergencies." Also, GCI developed a course on the "Fundamentals of the Conservation of Photographs" which is now taught in eastern Europe by the Academy of Fine Arts and Design in Bratislava and the Slovak National Library. Besides courses and workshops, GCI has also been involved with long-term education programs, such as establishing a Master's degree program in Archaeological and Ethnographic Conservation in collaboration with the University of California, Los Angeles. Field projects GCI's field projects are "selected based on how they fit the institute's goals of raising public awareness, contributing new, broadly applicable information to the field, and supporting cultural heritage" and "must be executed in collaboration with partners… who must be serious about their efforts… so that projects are assured of continuing after the Getty's involvement ceases." Among other completed GCI field projects were efforts to preserve the Mogao Caves and Yungang Grottoes in China (announced in 1989); to restore prehistoric rock paintings of Sierra de San Francisco in Baja California Sur (1994); and to protect ancient buildings and archaeological sites in Iraq following the start of the Iraq War (2004). Dissemination of information It has been stated that "perhaps the institute's most profound contribution to conservation is the dissemination of information and methods learned in the field." Methods of information dissemination include conferences; lectures; books; and online publications, newsletters, video, and audio. The following are selected books published by GCI: Ward, Philip R. The nature of conservation: a race against time. Marina del Rey, CA: Getty Conservation Institute, 1986. The conservation of tapestries and embroideries: proceedings of meetings at the Institut royal du patrimoine artistique, Brussels, Belgium, September 21–24, 1987. Los Angeles: Getty Conservation Institute, 1989. Cather, Sharon. The conservation of wall paintings: proceedings of a symposium organized by the Courtauld Institute of Art and the Getty Conservation Institute, London,