A Graph-Theoretic Introduction to Ted Nelson's Zzstructures, by McGuffin

Zzstructure is the generic name for Ted Nelson's ZigZag(tm) [13,6,23,10], an unusual way of linking and organizing information. Zzstructures are one aspect of Nelson's vision of what hypertext should be (see, for example, Xanadu [11,12,5]). Many uses for zzstructures have been proposed, from organizing personal schedules [14], to visualizing genealogical family "trees" [26], to "cell programming" [22] (an example of a cellular programming language is Clang [25]).