Psychology
Selling to the Old Brain Book Summary - Selling to the Old Brain Book explained in key points
Listen to the Intro
00:00

Better than a summary

Selling to the Old Brain summary

Patrick Renvoisé

How Neuroscience holds the Key to Influencing Your Audience

  • 4.6 (136 ratings)
  • 16 mins
  • 5 Key ideas
  • Audio & text
Get started

No credit card required · Cancel anytime

Selling to the Old Brain offers insights into the psychology behind decision-making, focusing on the primal brain's role in sales. It teaches strategies to engage this instinctual part of the brain for effective persuasion.

Table of Contents

Selling to the Old Brain
Summary of 5 key ideas

Audio & text in the Blinkist app

Key ideas in Selling to the Old Brain

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Key idea 1 of 5

If you want to persuade, speak to the part of the brain that actually calls the shots

Great products don’t sell themselves. You might have cutting-edge tech or a revolutionary service, but if your message doesn’t land with the part of the brain that actually makes decisions, you’ll be left wondering why your pitch fell flat. Neuromarketing shows that decisions aren’t made by logic alone – they’re driven by instinct, emotion, and survival impulses. And the part of the brain responsible for that? It’s the old brain.

The old brain, also called the reptilian brain, is the oldest part of our neural hardware. It’s been around for about 450 million years and still controls our survival instincts. It evolved long before language, logic, or even complex emotions. This brain doesn’t analyze spreadsheets or care about technical specs. What it does do is decide. It pulls the trigger on every major action, and it’s hardwired to respond to things like fear, contrast, simplicity, and emotion. That’s why trying to sell with facts alone often fails. You’re talking to the new brain – the one that processes logic – but ignoring the old brain, where the real action happens.

The human brain has three major parts: the new brain, which thinks; the middle brain, which feels; and the old brain, which decides. Most sales presentations target the first two – facts and emotions – but forget the third. That’s a mistake. Even with emotional storytelling, unless you engage the old brain, your message risks being ignored or forgotten.

So how do you talk to a brain that doesn’t understand language? You use signals it’s evolved to notice. The old brain is tuned to spot threats or rewards, so frame your offer in terms of before and after, problem versus solution, danger versus safety. Then keep it simple. The old brain doesn’t like complexity – it’s looking for clarity and relevance. Use visuals over words, because images are processed faster and more directly. And anchor your message in emotion, because emotion is the bridge between the feeling brain and the deciding brain.

This also explains why trust is such a powerful selling tool. The old brain scans constantly for risk. When you come across as confident, clear, and in control, it feels safer to say yes. But if you overload your audience with jargon or bullet points, you trigger mental shutdown. That’s not just bad messaging – it’s bad neurology. To really connect and convert, in short, you need to shift your strategy. So how do you go about that? Let’s find out!

Get the key ideas from 9,000+ bestselling books

Get started

No credit card required · Cancel anytime

More knowledge in less time

  • Read or listen

    Get the key ideas from nonfiction bestsellers in minutes, not hours.

  • Find your next read

    Get book lists curated by experts and personalized recommendations.

  • Shortcasts

    We've teamed up with podcast creators to bring you key insights from podcasts.

What is Selling to the Old Brain about?

Selling to the Old Brain (2003) explains how people make decisions using the oldest part of the brain, which is driven by emotion, survival, and instinct – not logic. It presents a set of tools to craft messages that connect with this primal decision-maker using visual cues, emotional hooks, and simple, high-contrast language. The goal is to help anyone become more persuasive by communicating in a way the brain is wired to respond to.

Who should read Selling to the Old Brain?

  • Sales professionals who want more impact
  • Marketers crafting persuasive campaigns
  • Entrepreneurs pitching to investors or clients
Buy on Amazon

About the author

Patrick Renvoisé is a computer scientist and former business development executive in the tech sector, where he sold advanced computing solutions to companies like NASA and Boeing. His deep interest in human behavior led him to develop a neuromarketing framework that links brain science with real-world sales techniques.

Christophe Morin is a marketing strategist with executive experience across telecom, retail, and manufacturing. He’s led major bids, including a multimillion-dollar Olympic contract, and brings a wealth of real-world business insight to the psychology of persuasion. Together, they co-authored the best-selling The Persuasion Code, which builds on the core ideas introduced in Selling to the Old Brain.

Categories with Selling to the Old Brain

Book summaries like Selling to the Old Brain

People ❤️ Blinkist

Become a member of our community of 43 million people

4.76App Store

96k ratings

4.5Google Play

73k ratings

Laura H.

When I saw Blinkist had produced an infographic style Blink for the Rich Dad, Poor Dad book, it was a good reminder of the concepts I loved.

Jonathan A.

Clearly communicates the value proposition of the most popular book summaries and offers a relatable, tangible template that I can use immediately.

Renee D.

I'm absolutely thrilled that Blinkist now offers infographics! I can't get enough of them—they're such a fun and effective way to grasp and remember key points.

Get started

People also liked these summaries

Trusted by the world's leading brands

brand logos from TikTok, Booking.com, Microsoft, Lyft, Babbel, Tier, LinkedIn, and Zalando

Powerful ideas from top nonfiction

Try Blinkist to get the key ideas from 7,500+ bestselling nonfiction titles and podcasts. Listen or read in just 15 minutes.

Get started

Featured Titles