Out with the old and in with the new.
But not completely out.
Remember the old. Prune it. Bring in new seeds,
Though these will need pruning soon enough.
Then do it again.
It wouldn't do well to forget Asia. Especially since it will be present in my studies (my Russian program will focus on Russian-Chinese relations). But I can't continue writing more chapters in a finished book, like epilogues good only for pampering the past. So I'm changing the book cover. It's a new book, set in the same binding with the first for consumer convenience. So go ahead, buy the set. Feel them the same, see them separate.