Bureau of National Affairs, Inc. (The). The Group's principal activities are to publish and provide specialized legal, regulatory and general business advisory information to business, professional and academic users. The Group prepares, publishes and markets subscription information products in print, compact disc, online formats, books, pamphlets and research reports. The customers include lawyers, accountants, labor unions, trade associations, educational institutions, government agencies and libraries. The Group operates primarily in the publishing, printing, and software industries. Publishing segment undertakes production and marketing of information products in print and electronic form. Printing operations consist of printing services to internal and outside customers. Software operations consist of the production and marketing of software programs. Publishing accounted for 85% of 2002 revenues; Software, 8% and Printing, 7%.