Master evidence-based sales techniques to understand customer psychology, overcome objections, and close deals confidently.
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Introduction
David Hoffeld’s The Science of Selling integrates cutting-edge research from psychology, neuroscience, and behavioural economics to transform the art of sales into a science. Hoffeld argues that understanding how people make buying decisions enables salespeople to influence behaviour predictably and ethically. The book provides actionable strategies grounded in research to help sales professionals improve every stage of the sales process.
Hoffeld highlights that traditional sales methods often fail because they rely on anecdotal techniques rather than proven principles. A major issue is the misalignment between how salespeople sell and how buyers make decisions. He stresses the importance of adopting a scientific approach to influence effectively.
Influence occurs through two primary routes:
Hoffeld explains how leveraging both methods enhances the likelihood of success. For instance, presenting information in a logical sequence while building trust creates a powerful synergy.
Hoffeld introduces the Six Whys, a framework representing the mental questions buyers subconsciously ask before making a purchase:
Addressing these questions ensures the sales process aligns with the buyer’s decision-making journey.
Hoffeld explains that well-crafted questions uncover buyer motivations, needs, and objections. He advises avoiding closed or leading questions, which can inhibit meaningful dialogue. Instead, focus on open-ended questions that encourage buyers to share insights and priorities.
Buyers perceive value when solutions address their primary motivations. Hoffeld shares strategies to:
Hoffeld challenges traditional “hard closing” techniques, which often create resistance. He advocates for a methodical approach to gaining incremental commitments throughout the sales process, reducing pressure during the final close.
Hoffeld highlights five scientific principles for effective presentations:
Hoffeld predicts that sales will increasingly integrate scientific insights, transforming it into a more predictable and respected profession. He identifies five core qualities for successful salespeople:
Hoffeld concludes with a call to action for sales professionals to embrace continuous learning and adopt science-backed methods to thrive in a competitive marketplace.
The Science of Selling provides a framework for sales success, bridging the gap between theoretical research and practical application. It is a valuable resource for salespeople, managers, and anyone seeking to influence effectively.
I’ve helped B2B service companies scale — not with random tactics, but with clear systems that align marketing and sales into one predictable growth engine. Built on 15 years of hands-on experience — helping teams move from random tactics to repeatable, scalable results.
15 years experience
1,500 marketers trained since 2015
Exited 6 companies
My name is Ewoud Uphof, a marketing strategist with 15 years of experience. I've been fascinated by growth since 2010, and I created this guide out of a passion for sharing what I've learned. These guides are a way for me to give back to the marketing community and are also linked to my video course, which covers these topics in even greater depth.
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Master evidence-based sales techniques to understand customer psychology, overcome objections, and close deals confidently.