Contagious by Jonah Berger: The STEPPS Framework Explained (2026)

Why do some ideas, products, and stories spread through word of mouth while others — often objectively better ones — go nowhere? Jonah Berger’s Contagious: Why Things Catch On answers this with research-backed mechanics instead of vague “make great content” advice. It is the natural next step after understanding persuasion and memorability: Cialdini explains how to get a “yes,” the Heath brothers explain how to make an idea memorable, and Berger explains specifically why people choose to share one thing over another.

This complements the Made to Stick review (on memorability) and the Influence review (on persuasion) — together the three cover getting attention, making it memorable, and making it spread. See the full Best Marketing Books guide for how all the pieces fit together.

The STEPPS Framework

• Social Currency. People share things that make them look good, in-the-know, or ahead of the curve. If sharing your content or product makes someone look smart or exclusive, they will do it more.
• Triggers. Ideas linked to common, everyday cues get talked about more often because the environment keeps reminding people of them (Berger’s famous example: Kit Kat linked to coffee breaks).
• Emotion. High-arousal emotions — awe, excitement, anger, anxiety — drive sharing far more than low-arousal contentment. Content that makes people feel something intensely spreads; content that just informs usually doesn’t.
• Public. Anything visible in public use (a logo, a distinctive unboxing, a visible badge) advertises itself simply by being seen.
• Practical Value. Genuinely useful information that helps others (deals, tips, how-tos) gets shared because sharing it provides real value to the sharer’s network.
• Stories. Information travels more easily wrapped inside a narrative than as a bare fact or statistic — the Trojan Horse principle: put your message inside a story people already want to tell.

A Practical Example

A B2B SaaS company launching a new integration could apply STEPPS directly: give early users a shareable “I’m an early adopter” badge for their LinkedIn (Social Currency + Public), tie the announcement to a common workplace frustration like manual data entry (Trigger), publish a case study with a specific, high-arousal before/after story rather than a dry feature list (Emotion + Stories), and include a genuinely useful free calculator or template alongside the launch (Practical Value). Most B2B launches only use one or two of these six levers; using several at once compounds the effect.

Where the Book Falls Short

Like most popular business books, Contagious leans on a curated set of success stories rather than a balanced accounting of how many campaigns tried the same tactic and failed — a form of survivorship bias worth keeping in mind. It is also more useful for consumer virality and word-of-mouth than for enterprise sales cycles, where a single champion’s private decision matters more than public visibility. Treat STEPPS as a checklist for content and campaigns, not a guarantee for pipeline generation in long B2B sales cycles.

One underrated point in the book: virality is rarely one lucky viral moment. Berger’s own research shows that “average” content shared by many moderately-sized networks usually outperforms one single huge viral hit in total reach over time, because a genuine viral spike is unpredictable and unrepeatable, while designing content around STEPPS is a repeatable process you can apply to every single launch or campaign.

Who Should Read This

• You run content or social marketing and want a research-backed checklist instead of guessing what will spread.
• You are launching a product and want a framework for building shareability in from the start, not bolting it on after.
• You already understand persuasion and memorability and want the missing “why does this get shared” piece.

FAQ

What is STEPPS?
Social Currency, Triggers, Emotion, Public, Practical Value, and Stories — six factors that make ideas and products more likely to be shared.

Does Contagious work for B2B marketing?
Partially — the principles apply to content and brand awareness, but enterprise buying decisions are often private rather than public, so the “Public” and “Social Currency” levers need more adaptation than in consumer marketing.

Which STEPPS factor matters most?
Berger doesn’t rank them, but Emotion and Triggers tend to compound the others — a high-arousal emotional story linked to a frequent everyday cue gets both remembered and repeatedly re-surfaced, which is a stronger combination than any single factor alone.

Read next: Made to Stick or Influence by Robert Cialdini, or see the full Best Marketing Books guide.