PSA. We’ve all seen the acronym, but what does it mean? Professional Skaters Association? Pish. Prostate-Specific Antigen? Please. Professional Sports Authenticator? Don’t make me laugh. No, a PSA is a Public Service Announcement (not to be confused with a PDA, either a Public Display of Affection or a Personal Digital Assistant, as the situation requires).

What are some examples of a PSA in action? Well, for example, one could say, “Black Clock #14 is a sleek magnum of literary content. I worked on both the print and epub versions, and both are available to order now. It will expand your mind and your chest and might even save you from a bullet one day if you can find a chest pocket big enough to hold it.”

That would be a pretty good PSA, and sound advice, no less. Another classic example is “The British are coming, the British are coming!” As you can see, the PSA is something of a historical tradition. “Of the tree of the knowledge of good and evil, thou shalt not eat of it: for in the day that thou eatest thereof thou shalt surely die” may well be the first PSA in recorded history, the first of many related to the recall of dangerous or contaminated produce. For more historical and contemporary examples of the PSA, see here. For more on Black Clock, go here. And, once more, sleep safely.

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