Interactive Multimedia in Library and Information Services

Only a few years ago, David Clark used the term "twenty-first century books" to express his optimistic view of the future of interactive videodisc technology. [1] Talking about twenty-first century books today, we certainly need to look at the more recent members of the optical media family, some of which have already entered the marketplace or will do so in the very near future. These media will not only take over certain functions which traditionally were fulfilled by printed books, but they will also provide features fhat conventional text-based media could not.