EPISODE · Jun 14, 2026 · 6 MIN
How One Underlined Word Lifted Response by 42 Percent
from The Copywriting Podcast with Fexingo: Sales Letters, Headlines, and Persuasive Writing · host Fexingo
In this episode of The Copywriting Podcast, Lucas and Luna revisit a classic direct mail test from the 1970s that still holds lessons today. A single underlined word in a fundraising letter for a veterans' charity lifted response by 42 percent. They break down why the underline acted as a cognitive highlighter, how it changed the reader's mental rehearsal, and what this means for your emails, landing pages, and sales letters in 2026. Plus: a quick reflection on why the show stays ad-free and how you can support it. #Copywriting #DirectMail #Fundraising #Persuasion #Headlines #SalesLetters #MarketingPsychology #VeteransCharity #1970s #CognitiveBias #Underline #Emphasis #ConversionRate #ResponseRate #A_BTesting #CopywritingTips #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo
What this episode covers
In this episode of The Copywriting Podcast, Lucas and Luna revisit a classic direct mail test from the 1970s that still holds lessons today. A single underlined word in a fundraising letter for a veterans' charity lifted response by 42 percent. They break down why the underline acted as a cognitive highlighter, how it changed the reader's mental rehearsal, and what this means for your emails, landing pages, and sales letters in 2026. Plus: a quick reflection on why the show stays ad-free and how you can support it. #Copywriting #DirectMail #Fundraising #Persuasion #Headlines #SalesLetters #MarketingPsychology #VeteransCharity #1970s #CognitiveBias #Underline #Emphasis #ConversionRate #ResponseRate #A_BTesting #CopywritingTips #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo
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How One Underlined Word Lifted Response by 42 Percent
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