Yes, there already is a book called The Tree of Virtues in the Saga, but that is fiction.
This one is titled A Twenty-first Century Tree of Virtues, and it is non-fiction, though I am happy to tell you that there IS a short story in it, with the Weaver triplets.
Oh yeah... but it is merely an introduction to the topic. The book studies the matter of organizing the entire realm of human actions - the VIRTUES - which includes the vast collection of disciplines, the Arts and the Sciences, the Crafts and the numerous branches of Engineering, as well as all those things usually considered Virtues. It contains a study of some dozen treatments over the last two millennia, and in particular a detailed study of the famous Generalis Divisio Virtutis in the Cursus Theologicus written by the Carmelites of Salamanca in the early 1600s...
famously photographed by my friend Andrew Poole of Loome Theological Booksellers.
That tree is augmented with the huge collection of inter-related disciplines which have branched forth in the last four hundred years. Alas, it still awaits an artist, but without this detailed study, the artwork will never occur.
Eventually, this new tree will give forth its fruit... perhaps in the form of the Ambrosian University...
Visit: here to order.