Latest / The Copywriting Podcast with Fexingo: Sales Letters, Headlines, and Persuasive Writing / How a Postcard Beat a Four-Page Sales Letter
Transcript
- Lucas: So there's a direct mail test from early 2023 I keep coming back to. A financial services company sent two versions to the same list — a four-page, highly designed sales letter in a branded envelope, and a plain postcard with a handwritten-style note on the front and a simple call to action on the back. Luna: And I'm guessing the postcard didn't lose. Lucas: It won by 22 percent in revenue per recipient. The letter cost about three times as much to produce and mail, so when you factor in cost, the postcard's ROI was almost four times higher. Luna: Four times. That's the kind of number that makes you question every assumption about what 'professional' communication looks like. Lucas: Exactly. And the fascinating part is that the letter had all the hallmarks of a good sales piece — a strong headline, bullet points, a clear offer, a P.S. It was copywriting by the book. But the postcard felt like it came from a real person. Luna: It was probably the handwriting. There's something about seeing a handwritten note, even if it's simulated, that signals a lower sales intent. Lucas: That's part of it. But there's also the cognitive load angle. A four-page letter demands a commitment. The reader has to decide whether to invest time. A postcard — you've read it in three seconds. The barrier to processing is almost zero. Luna: Right, and once you've read it, you've already absorbed the key message. You don't have the option to skim past the offer. Lucas: Exactly. The postcard forced the headline and the call to action into the same visual field. With the letter, the reader had to open the envelope, unfold the paper, and scan. Every extra step is a potential drop-off. Luna: So what was the actual message on the postcard? Do you remember the specifics? Lucas: It was a handwritten marker-style font. The front said, 'Hey, this new tool saved me 40 hours last month. Thought you might want to try it. — Mike.' And on the back, a simple URL and a phone number. Luna: No offer, no bullet points, no guarantee? Lucas: Nothing. Just a personal recommendation from 'Mike.' The letter had a detailed breakdown of features, a thirty-day free trial, testimonials, the whole package. But the postcard outperformed it because it felt like an insider tip rather than a sales pitch. Luna: It's almost like the lack of information signaled confidence. Like, 'This is so good, I don't need to sell you, just try it.' Lucas: That's a great way to put it. There's a concept in behavioral economics called 'information avoidance' — sometimes people don't want all the details because details create the possibility of finding a reason to say no. Luna: So by keeping it sparse, you remove the objections before they form. Lucas: Right. And the handwritten style plays into what psychologists call 'effort heuristic.' When something looks like it took effort — in this case, a personal note — we assign it more value. Even though it was a font, the visual cue of handwriting increased perceived authenticity. Luna: It makes me think about email marketing. How many of us are writing four-paragraph emails when a two-line note would perform better? Lucas: There's a direct parallel. I've seen tests where a plain-text email with a single link outperforms a beautifully designed newsletter by double digits. The same principle — reduce cognitive load, increase perceived sender effort. Luna: Let's talk about the envelope. In the direct mail test, the letter came in a branded envelope with the company logo. The postcard was just a standard, unmarked card. Did that matter? Lucas: Huge. The branded envelope probably triggered 'junk mail' recognition. Even if recipients opened it, they were already skeptical. The postcard had no branding on the front, so it looked like a personal correspondence. The initial framing was completely different. Luna: So the lesson isn't just 'use a postcard.' It's 'remove the signals that trigger your prospect's sales defense.' Lucas: Exactly. And this is where the craftsmanship comes in. You have to be strategic about what you omit. If you just send a generic postcard with a logo and a coupon, you're still signaling sales. The magic is in making it look and feel personal. Luna: Which brings us back to that handwritten style. I've seen tools that let you automate handwritten envelopes, but they still look machine-made to me. Any tips for making it feel real? Lucas: The best approach I've seen is to use a real pen and a real person for a small test, then scale the winner. Even if you only mail a hundred, the response data will tell you if the concept works. Then you can use a service that simulates handwriting with slight variations — never perfect alignment, never identical letters. It's the imperfections that sell the authenticity. Luna: Imperfections as a feature. I love that. Lucas: And speaking of small tests that generate big returns — if these kinds of marketing experiments and copywriting deep dives are valuable to you, and you want to see the show stay ad-free, listeners can support us at buy me a coffee dot com slash fexingo. It's a simple way to keep this kind of conversation going without sponsors. Luna: Yeah, and it's totally optional. We just appreciate that people find this useful enough to even consider. Lucas: Alright, back to the postcard. One more thing that stood out in the test: the postcard was mailed without an offer expiration date. The letter had a 'valid until' line. The postcard's response actually increased over time, while the letter's tapered off. Luna: Because without an expiration, the postcard felt less like a coupon and more like a standing recommendation. Lucas: Exactly. The urgency cue can backfire if it makes the piece feel transactional. The postcard felt like advice, not advertising. Luna: So if someone wants to apply this today, what's the one takeaway? Postcard vs. letter isn't the point — it's about stripping away anything that screams 'marketing.' Lucas: I'd say run your own test. Take your best-performing sales page or email, reduce it to two sentences and one link, put it in a plain format, and see what happens. The results might surprise you. Luna: And if it works in direct mail, it'll probably work on a landing page too. Lucas: Absolutely. The principles are medium-agnostic. It's about trust, cognitive ease, and the illusion of personal effort. Luna: The illusion of personal effort — that's a good name for this episode. Lucas: I'll take it. So next time you're tempted to add more copy, ask yourself: what would happen if you removed half of it and made the rest look like a note from a friend? Luna: I'm actually going to try that with my next nurture email. See what happens. Lucas: Let me know how it goes. We might run a follow-up episode.