KNOWLEDG=XCHANGE

computer software featuring instruction in business, finance, technology and economic subjects for business and academic professionals, and accompanying instruction manuals sold as a unit; prerecorded videotapes and audiotapes featuring instruction in business, finance, technology and economic subjects

series of non-fiction books on business, finance, technology and economics

computerized on-line ordering services, telephone shop-at-home services, mail order catalogue services; all in the field of books, prerecorded audio cassettes and computer software