900 Years of Tree Diagrams, the Most Important Data Viz Tool in History. ... "The tree, as a representational hierarchy, cannot accommodate things like the web and Wikipedia--things with linkage.

As the figurative tree diagram progressed into more pragmatic uses it ... or the much more conceptual icicle trees from the early 1980s that use a succession of rectangles to express hierarchy.

This medieval "Tree of Life" works as a mnemonic memory aid (Image: Beinecke Rare Book and Manuscript Library, Yale University) From studying the bible to visualising computer storage ...

Dependency Walker is a free utility that scans any 32-bit or 64-bit Windows module (exe, dll, ocx, sys, etc.) and builds a hierarchical tree diagram of all dependent modules.