FED UP WITH the cold connection of virtual Netflix Parties and digital game nights, Americans are increasingly turning to old-fashioned letter writing to establish a more tactile and intimate rapport. Paper Source, a national stationery chain, reports that sales of “just because” cards, those not associated with life events, are up nearly 2,000% year-over-year since March. But these aren’t just letters, and the more ambitious missives, increasingly embellished and fun to look at, have started landing on social media, as an outlier form of expression called Mail Art.
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