Encyclopædia Britannica it is scarcely used, and reviewers have recommended that it be dropped from the encyclopaedia. The also has color transparencies of human anatomy and several appendices listing the staff members, advisors, and contributors to all three parts of the Britannica. Taken together, the and comprise roughly 40 million words and 24,000 images. The two-volume index has 2,350 pages, listing the 228,274 topics covered in the "Britannica", together with 474,675 subentries under those topics. The "Britannica" generally prefers British spelling over American; for example, it uses "colour" (not "color"), "centre" (not "center"), and "encyclopaedia" (not "encyclopedia"). However, there are exceptions to
Encyclopædia Britannica past year's events. A given edition of the "Book of the Year" is named in terms of the year of its publication, though the edition actually covers the events of the previous year. Articles dating back to the 1994 edition are included online. The company also publishes several specialized reference works, such as "Shakespeare: The Essential Guide to the Life and Works of the Bard" (Wiley, 2006). The "Britannica Ultimate Reference Suite 2012 DVD" contains over 100,000 articles. This includes regular "Britannica" articles, as well as others drawn from the "Britannica Student Encyclopædia", and the "Britannica Elementary Encyclopædia." The package