Contagious: Why Things Catch On
Good for: Shoppers who want a reliable, well-reviewed product
Watch out for: No major red flags detected
Last analyzed: February 2026
Total Reviews
7,609
On Amazon
Verified
81%
Good
Amazon Rating
4.6
Original rating
Savinoo Rating
4.4
Adjusted rating
Our Recommendation
SAFE TO TRUST - Reviews appear authentic and reliable for making purchase decisions.
Analysis Summary
- LOW RISK (Score: 100/100) Contagious: Why Things Catch On's reviews appear mostly authentic. Positive Indicators: 81% of reviews are from verified purchases, which is good..
Customer Reviews from Amazon
Most Helpful Review
"Maybe it’s the high from reading a really good book prior to this one, but this booked missed the mark. I did not find any of the information useful. It was your typical “this study here” and “a group of people there.” I felt the book was just informative rather than interactive (actual means to make ideas relevant)."
elaine starling
I absolutely love this book! Jonah Berger does a brilliant job at weaving together examples…
I absolutely love this book! Jonah Berger does a brilliant job at weaving together examples as stories that make us laugh or cringe - emotions that cause us to share. Delightfully illustrated throughout the book, the STEPPS become easy to understand and share. Well worth reading. I’ll definitely be recommending this book to everyone who wants to make a difference that lasts.Anonymous
Very good read,sometimes the word of mouth is not enough to move a product,today Ad…
Very good read,sometimes the word of mouth is not enough to move a product,today Ad men have a lot of tools to work with.danny
In the 1980s I started a small tech based hardware company that went viral beyond…
In the 1980s I started a small tech based hardware company that went viral beyond my most optimistic predictions. I never knew exactly why... After reading this book I know why, and now know what I could have done to make the business last longer... Every entrepreneur should read this book.genevieve m
Exactly what I needed, came in just in time for a class!
jeffrey
I’ve been in advertising for 20 years and owned an ad agency’s and ad tech…
I’ve been in advertising for 20 years and owned an ad agency’s and ad tech company for the last 11 years. I read Contagious three years ago as our company’s annual book club book and I probably use example and stories from this book in conversation once per month. It’s a great, academically backed resource for anyone in marketing, PR, social media, or advertising. It’s also been inspirational for me to get involved on teaching at a college level and write my own book (The Intentional Leap).yiyi
I was about to start a new reading when I was surprised by the terrible…
I was about to start a new reading when I was surprised by the terrible thing about the torn book with a sharp effect stained pages, am I the only one?(My main annoyance is that I bought it at a first-hand price, it should be totally new and even if it was second hand, shouldn't the product be carefully reviewed?)Finally and appeal from the disappointment the content page points to an interesting reading.What Customers Talk About
Commonly Praised
Commonly Complained
Review Quality Analysis
Review quality helps identify authentic customer feedback. Longer, detailed reviews (50+ words) typically indicate genuine experiences, while high percentages of short reviews (under 20 words) may suggest incentivized or fake feedback.
Average Words
55
✓ Detailed reviews
Long Reviews
10%
⚠ Low detail
Short Reviews
10%
✓ Low brief reviews
Review Length Distribution
Authentic vs Brief Reviews
Average Word Count Gauge
Benchmark: 30 words = moderate, 50+ words = detailed & authentic
55
avg. words per review
Interpretation: Review quality appears within normal range for this product category.
Review Velocity
Review velocity tracks how quickly reviews are posted. Steady, gradual accumulation is natural, while sudden spikes or bursts (20+ reviews in a single day) may indicate incentivized campaigns or coordinated activity.
Average Per Day
0.02
Natural pace
Max in One Day
2
Normal range
Steady Velocity Detected
Reviews posted at a consistent, natural pace over time — typical of organic customer feedback.
Rating Breakdown
This chart shows how customers rated Contagious: Why Things Catch On. Products with authentic reviews typically show a bell curve with most ratings in the 3–4 star range. A heavily polarized distribution — many 5★ and 1★ with few middle ratings — can be worth investigating further.
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Our analysis is based on 7,609 reviews.
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How does this compare?
This product scores 100/100 — better than most products we've analyzed. A strong trust signal.
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