Information guru Manuel Lima has written a book titled The Book of Trees: Visualizing branches of knowledge, and Jonathon Keats has a review: Trees were symbolically important for most ancient cultures, often worshipped and frequently present in art. Their association with immortality and their branching structure made them natural scaffolds for genealogies, showing, for example, the lineage of Christ and of royalty. They visually established pedigree and, equally crucial in medieval…
