Butterick’s Practical Typography
“Good typography is measured by how well it reinforces the meaning of the text, not by some abstract scale of merit.”
An excerpt from the Forward written by Erik Spiekermann:
Without typography, one could argue, messages will still be legible, but if one really wants to communicate rather than simply display a heap of alphanumeric data, some consideration would be helpful. Paul Watzlawick’s first axiom of communication—“one cannot not communicate”—puts it very succinctly. If you fail to consider the effect of your message on the recipient, you may inadvertently communicate that you do not care how your message may be received.