A great course, masterfully delivered and rich with practical insights.
Rohit
Online Influence Power Course participant, 2025
the only newsletter I always open
The Online Influence Newsletter
Stop guessing what makes people act.
Every three weeks, get one proven behavioral insight, one real case and one practical action you can use immediately.
- See why people hesitate online
- Find the friction blocking action
- Test one practical change immediately
Built on proven behavioral science
37
proven psychological principles
1,000+
professionals applying our methodology
101,238
books sold worldwide
Trusted by leading teams
Start with one useful idea
Tiny AI prompts change real behavior.
Small wording changes can shape bigger decisions. This short breakdown shows five changes you can test yourself.
- Reduce choice before asking for action
- Make the next step obvious
- Use timing to strengthen prompts
- Remove friction before adding motivation
Meet the expert
Meet Bas Wouters
Bas Wouters makes behavioral science practical. As co-author of Online Influence, he helps professionals apply proven principles to digital communication, conversion and AI.
- Co-founder, Cialdini Institute
- International bestselling author
- Trained thousands of professionals worldwide
WHAT PARTICIPANTS SAY
Science made practical.
Feedback from professionals who completed the Online Influence Power Course with Bas Wouters (5 live sessions of 2 hours, 2025).
- participant responses
- 37
- average rating
- 4.7/5
- recommendation score
- 9.4/10
- NPS
- +78
The perfect mix between science and application for the online environment. A total must!
Pilar Bringas
Online Influence Power Course participant, 2025
Fantastic. Giving real-world tools to drive results. Explained clearly and simply.
Clive
Online Influence Power Course participant, 2025
CORPORATE MASTERCLASS
Online Influence masterclass
Bas Wouters delivers practical masterclasses and training sessions for marketing agencies and marketing professionals at mid-sized and large organizations. He shows teams how to apply behavioral science and influence principles to real-world marketing challenges.
“He shared valuable knowledge applicable to the group's companies. He shared real cases and gave live feedback.”
Proven in practice
See the psychology create results.
Real behavioral changes. Measurable business results.
How SimCity increased sales by 43.4%
A behavioural intervention in the checkout flow used social proof and clearer defaults, changing how players evaluated the offer.
Higher sales without changing the product or price.
Read the caseHow Bol.com increased reviews with 400%
By reframing the request moment and lowering the perceived effort, more customers left a review — with almost no extra cost.
A 4× increase in review volume in weeks.
Read the case
How SEAT generated 2000% more leads
A small change in how a call-to-action was positioned in the customer's journey unlocked a large behavioural shift.
A dramatic lift in qualified lead volume.
Read the caseLatest from Online Influence
New ideas. Practical applications. Better decisions.
Watch, read and apply the latest Online Influence insights.
Recording · 22 min
Recordingbehavioral science
Why defaults decide almost everything
Redesign one default this week to lift completion without pushing harder.
22 minWatch the recording →
Jul 1, 2026
Article · 6 minAnatomy of a checkout that stops leaking
Articlemarketing and conversion
Anatomy of a checkout that stops leaking
Cut one field and reframe one CTA — measure the lift within a week.
6 min readRead the article →
Jun 24, 2026
Guide · 12 minThe behavioral funnel guide
Guideoffers and funnels
The behavioral funnel guide
Map your funnel to five decision moments and remove friction on the two heaviest ones.
12 min readOpen the guide →
Jun 10, 2026
Not only world leading companies trust us, we also partner with leading universities
The book
The book behind the method
Online Influence translates decades of behavioral science into practical digital applications: how to design pages, flows and AI conversations that respect people and still work.
- Over 100,000 copies sold worldwide
- Recommended by practitioners in Fortune 500 companies
- The foundation of the Online Influence method