Latest / The Copywriting Podcast with Fexingo: Sales Letters, Headlines, and Persuasive Writing
How a P.S. Lifts Conversion by 42 Percent
In this episode of The Copywriting Podcast with Fexingo, Lucas and Luna drill into one of the most underrated elements of a sales letter: the postscript. They unpack a famous case from direct-mail legend John Caples, who tested a P.S. that added a single sentence—and lifted response by 42 percent. Then they bring it into 2026, looking at how a travel brand used a P.S. in an email campaign to boost click-through rates by 21 percent. Lucas explains the psychology: the P.S. is the second-most-read part of any letter, right after the headline, because it recaps the offer, creates urgency, or adds…
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