WL recommended Steven Pinker's The Sense of Style. Pinker is a graceful and persuasive advocate for what he calls the classic style. To write clearly and expressively, as if showing a reader a view outside the window, or engaging a reader in a conversation of equals, one can do worse than consult this book. My one reservation is that the classic style is not the only style of value. Pinker admits as much, but he is a partisan.
smelling of oranges