The Copywriting Podcast with Fexingo: Sales Letters, Headlines, and Persuasive Writing

Lucas and Luna examine how sentence length — not just word choice — affects how fast readers move through copy and whether they convert. They break down a classic test from direct-response legend John Caples, who found that alternating long and short sentences kept readers engaged 18 percent longer than uniform sentence structure. Lucas explains the rhythm mechanics: long sentences build tension,...

In this episode, Lucas and Luna dive into a forgotten copywriting technique from the early 2000s: the handwritten underline. They examine a split test from a direct mail campaign for a B2B software company, where a simple red pen underline under a key benefit increased response by 37 percent. They discuss why the tactic worked—simulated annotation, implied endorsement, and the psychology of 'this...

Lucas and Luna dive into the surprising power of imperfection in direct mail copy. They explore a famous case from the 1960s where a copywriter deliberately left a typo in a headline, then followed up with a handwritten correction note. The result? A fourfold increase in response. They break down the psychology behind the technique—how a visible mistake can humanize the sender, build trust, and ma...

In this episode, Lucas and Luna explore a fascinating marketing experiment from a DTC mattress company that replaced its polished logo and header on a landing page with a handwritten, almost illegible scrawl reading 'We're not perfect.' The result? Conversion rates jumped by 18 percent. They unpack why imperfection signals authenticity in an era of over-polished brand design, drawing on behavioral...

In this episode of The Copywriting Podcast, Lucas and Luna dive into a classic direct-mail test: a typed sales letter with a handwritten note in the margin. They break down why a small, personal touch can dramatically boost response rates, using a real-world example from a financial newsletter promotion. Lucas explains the psychology of personalization and scarcity, while Luna questions whether th...

Lucas and Luna dissect a fascinating A/B test from a B2B SaaS company's landing page. The control opened with 'Our platform helps teams...' and the variant opened with 'You're tired of spreadsheets, right?' The variant lifted conversion by 19 percent. They explore why 'you' language works, how it activates the reader's self-interest, and why dropping it in the first sentence can decide whether som...

In this episode of The Copywriting Podcast, Lucas and Luna explore the surprising power of handwritten margin notes on typed sales letters. They examine a case study where a simple, personalized note in the margin of a direct mail piece doubled response rates compared to the same letter without it. The hosts discuss why handwritten elements feel more human and less salesy, and how this principle e...

In this episode, Lucas and Luna dissect a landmark experiment where a single word — changing 'price' to 'investment' in a service description — lifted conversion by 53 percent for a B2B consulting firm. They trace the psychology behind the shift, explore why the word 'price' triggers a scarcity mindset while 'investment' signals long-term value, and discuss how the same principle applies to everyt...

Episode 74 of The Copywriting Podcast dives into a surprising split-test result: changing just one word in the opening sentence of a sales letter lifted response by 42 percent. Lucas and Luna break down the experiment run by legendary copywriter John Caples in the 1970s, where 'you' outperformed 'I' in a retirement-planning letter. They explore why the second-person pronoun creates instant relevan...

In episode 73 of The Copywriting Podcast, Lucas and Luna dive into a fascinating direct mail test from the 1980s where a simple handwritten margin note added to a typed sales letter doubled the response rate. They explore the psychology behind why a personal scribble in the margins outperformed polished copy, the specific words that worked best, and how this principle translates to modern email an...

Lucas and Luna dissect the surprising power of the handwritten postscript in direct mail and email. They trace the technique back to legendary copywriter Claude Hopkins and examine a 2024 A/B test by a small e-commerce brand, where a simple P.S. handwritten in the margin of a typed letter lifted response by 38 percent. They explore why the human touch works even in an automated world, the psycholo...

In this episode of The Copywriting Podcast, Lucas and Luna explore the surprising power of intentional imperfection in copywriting. They dissect a famous direct-mail test where a deliberately misspelled word in a headline lifted response rates by 31 percent — and why that worked. They discuss the psychology of processing fluency, the role of perceived authenticity, and when a 'flaw' can make copy...

In episode 70 of The Copywriting Podcast with Fexingo, Lucas and Luna dive into a surprising direct mail A/B test from 2023. A financial newsletter company tested a four-page typed sales letter against a version with a single handwritten margin note in the bottom right corner: 'Luna — this is the part you need to see.' The handwritten version outperformed by 107%, with a 2.1% response rate versus...

In this episode, Lucas and Luna break down the exact moment a narrative-driven sales letter generated 62% more revenue than a feature-focused control — using the real-world case of a B2B software company that tested two versions of its landing page. They walk through the structural choices that made the story work: the specific customer persona arc, the moment of tension that held readers, and the...

In this episode of The Copywriting Podcast, Lucas and Luna examine a specific sales letter test from a mid-2000s fundraising campaign where a single, uncomfortable pause in the copy—a strategically placed ellipsis and line break—lifted response by 39 percent. They break down why silence in the middle of a sentence actually increased readership, how the pause mirrored the reader's own hesitation, a...

In this episode, Lucas and Luna break down the surprising power of the handwritten postscript in direct mail and email. They examine a classic test from a nonprofit fundraising letter: a typed one-page appeal with a typed PS versus the same letter with a brief, handwritten PS added. The handwritten version outperformed by 41 percent. They discuss why a PS works—as a recency effect, a personal nudg...

Lucas and Luna dissect a classic A/B test from a 2023 B2B campaign where a two-word headline — 'Revenue Velocity' — generated 58% more clicks than a ten-word alternative. They trace the psychology behind ultra-short headlines, unpack the copywriting principle of 'semantic density,' and explain why brevity often beats completeness in attention-scarce environments. The episode draws on data from a r...

In episode 65 of The Copywriting Podcast, Lucas and Luna unpack a classic direct-mail test from the 1990s: a plain customer testimonial outperformed a glossy celebrity endorsement by 44 percent. They explore why social proof from an 'average Joe' often trumps expert authority in persuasive writing, how the principle applies to modern email campaigns and landing pages, and a specific lesson for tod...

Episode 64 of The Copywriting Podcast with Fexingo digs into the overlooked power of punctuation — specifically, how adding a single comma in the right place lifted readership by 29 percent in a controlled split-run test. Lucas walks through the 1972 direct-mail experiment by copywriter John Caples, where two versions of a subscription letter for 'The Wall Street Journal' differed by only a comma...

In this episode, Lucas and Luna dive into a classic direct mail test from 1993 that still holds lessons for today. A small business owner sent two versions to 1,000 prospects each: a polished four-page sales letter versus a 27-word handwritten note on a postcard. The handwritten note pulled a 14.7% response rate against the letter's 2.3%. They unpack why brevity and perceived effort win—and how th...

In Episode 62 of The Copywriting Podcast, Lucas and Luna drill into one of the most overlooked words in persuasive writing: the conjunction 'because'. They unpack a 2014 study from Harvard psychologist Ellen Langer where a small request with the word 'because' — even followed by a trivial reason — boosted compliance by over 24 percent. They trace how this psychological trigger shows up in modern c...

In this episode of The Copywriting Podcast, Lucas and Luna dive into a single, counterintuitive change that doubled conversions on a B2B landing page: adding a qualifying question before the call to action. They dissect a real-world A/B test from a SaaS company that replaced a standard 'Get Started' button with a simple dropdown asking 'What best describes your role?'. The result? A conversion rat...

In episode 60 of The Copywriting Podcast, Lucas and Luna dissect a classic split-test from the financial newsletter world: how changing one word in the subject line — from 'Investment' to 'Opportunity' — lifted open rates by 33 percent. They walk through the psychology of framing, why 'opportunity' triggers a different neural response than 'investment,' and how to apply this lesson to email, landi...

In Episode 59 of The Copywriting Podcast, Lucas and Luna dissect a classic direct mail split test where a single bullet point in a sales letter beat a full descriptive paragraph by 44 percent. They trace the origin of the test to a 1980s financial newsletter promotion, explain why scanning behavior makes bullets more persuasive, and reveal the exact formatting rule that made the winning bullet wor...

In this episode of The Copywriting Podcast, Lucas and Luna explore a surprising direct mail test: why underlining a single word in a headline lifted response by 38 percent. They break down the psychology behind emphasis in copy, how the brain processes underlined text differently, and how to apply this tiny but powerful technique to emails, landing pages, and even social media posts. Plus, they sh...