We all have different words that we are unfamiliar with of course but “PR” is most accurately categorized as an economics / marketing term IMO, and I think the

We all have different words that we are unfamiliar with of course but “PR” is most accurately categorized as an economics / marketing term IMO, and I think the meaning of the word “PR” is widely known so I don’t agree that the article is written for journalists based on that alone. I generally agree that abbreviations should be explained on first use but personally I would not bother to have explained what PR stood for because I (perhaps incorrectly) would have expected that word to be so widely known that no explanation would be necessary.