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Sunday, February 22, 2015

P's and Q's

"Mind your Ps and Qs is an old printer maker's way of saying, "pay attention to details".

Back in the olden days, when printing was done on a press, the individual letters were reversed on the block so they could print forward. It was easy to,confused those letters and read the p as a q, or the q as a p.

Hence the saying, "mind your Ps and Qs".