Ralph Keyes is credited with having invented the term “post-truth”. He published his book, The Post-Truth Era, on cultural dishonesty in 2004. However, it remains highly relevant today. Indeed Keyes was remarkably ahead of his time.
As the summary on Amazon remarks, “Dishonesty inspires more euphemisms than copulation or defecation. This helps desensitize us to its implications. In the post-truth era we don’t just have truth and lies but a third category of ambiguous statements that are not exactly the truth but fall just short of a lie.”