“Living,” in its adjectival sense, is one of those descriptors which is really only useful as a contrast to its opposite. Saying that Tobias Wolff is “A Great Living Author” is just a euphemism to point out that Mr. Wolff is not dead, unlike so many other great authors. Similarly, Living Wills and Living Trusts are unlike most regular wills and trusts because they become effective before the person who makes them is dead.