As for professional titles in museums, in my book MUSEUMS: A PLACE TO WORK, PLANNING MUSEUM CAREERS, (coming out next month from Routledge Press), we list 30 commonly used titles in museums, mostly U.S. usage. However, there are no "rules" for titles, nor should there be. Every museum adapts to their purposes and some come up with some very original titles. Doesn't matter, as long as it describes the job. Other countries have similar titles to the U.S., but there are definitely differences! A "conservator" in some European countries is what we call a "curator." Terminology in museums varies from country to country, but we all still have a commonality of goals and objectives that keeps us working together. Jane Glaser