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Description
ContagiousBy: Jonah Berger The New York Times bestseller that explains why certain products and ideas become popular. Jonah Berger knows more about what makes information go viral than anyone in the world. Daniel Gilbert, author of the bestseller Stumbling on Happiness What makes things popular? If you said advertising, think again. People dont listen to advertisements, they listen to their peers. But why do people talk about certain products and ideas more
By: Jonah BergerThe New York Times bestseller that explains why certain products and ideas become popular.
“Jonah Berger knows more about what makes information ‘go viral’ than anyone in the world.” —Daniel Gilbert, author of the bestseller Stumbling on Happiness
What makes things popular? If you said advertising, think again. People don’t listen to advertisements, they listen to their peers. But why do people talk about certain products and ideas more than others? Why are some stories and rumors more infectious? And what makes online content go viral?
Wharton marketing professor Jonah Berger has spent the last decade answering these questions. He’s studied why New York Times articles make the paper’s own Most E-mailed list, why products get word of mouth, and how social influence shapes everything from the cars we buy to the clothes we wear to the names we give our children.
In Contagious, Berger reveals the secret science behind word-of-mouth and social transmission. Discover how six basic principles drive all sorts of things to become contagious, from consumer products and policy initiatives to workplace rumors and YouTube videos. Learn how a luxury steakhouse found popularity through the lowly cheesesteak, why anti-drug commercials might have actually increased drug use, and why more than 200 million consumers shared a video about one of the most boring products there is: a blender.
Contagious provides specific, actionable techniques for helping information spread—for designing messages, advertisements, and content that people will share. Whether you’re a manager at a big company, a small business owner trying to boost awareness, a politician running for office, or a health official trying to get the word out, Contagious will show you how to make your product or idea catch on.
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4.5 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Nexium Free!!!
If I take this consistently, I only have about 1-2 acid reflux nights where I can’t sleep. I will be reordering soon. I am Nexium Free!!!!
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Reviewed in the United States on May 30, 2019
★★★★★ 5
Get it, you won't regret it!
Size: 2 Fl Oz (Pack of 1)
This stuff is awesome. I've been battling a lot of sickness lately, and this stuff gives me energy and helps my immune system. The only downside is I'm still not sure how much to take. I'm up to 2 dropper fulls a day (I'm 250lb), but have no idea how much that really is.
Warning Tip: Any time you open the bottle up, do it over a plate or paper towel. This stuff tends to get EVERYWHERE, even if the dropper is in the cup, and it stains like crazy. So keep a spray bottle of rubbing alcohol near by if it gets on your counter, the sooner you spray it with alcohol and scrub it, the less likely it'll stain permanently.
But avoid doing this over white counters no matter how careful you are😅. I tried it over white counters once, and no matter how careful I was or how many paper towels I put down, tiny droplets still got in random places on the counter. I still got it out with rubbing alcohol.. eventually... but oh boy it was way harder to do, I had to scrub a TON. 🤣
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Reviewed in the United States on August 31, 2025
★★★★★ 5
Effective for me!
Size: 2 Fl Oz (Pack of 1)
Thank you God!
The first day I took it I felt it.. I was having issue with my left eye optic neuritis/ optic pallor and I felt it working on my eye. It literally felt like it was restoring my eye. My eye was no longer irritating me and after around 2 months I was able to wear my contacts again…
I like this one better because it has other supplements like magnesium and lions man mushroom which I know can help possibly aid in cell regeneration…
The other one I tried is too concentrated for me and has a more harsh taste… this taste is way more tolerable…. I will continue to buy this one… it’s the best one… for me at least❣️ Thank you!
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Reviewed in the United States on November 5, 2025
★★★★★ 4
If you have ADHD You need this
Size: 2 Fl Oz (Pack of 1), Size: 2 Fl Oz (Pack of 1)
This stuff works really good. If you are having a problem with ADHD and cannot get medication for whatever reason get this stuff.
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Reviewed in the United States on April 23, 2026
★★★★★ 3
It was ok
Size: 2 Fl Oz (Pack of 1)
It tastes better than all the alternatives I’ve tried, but it makes me wonder if it is more sugar and less potency because I didn’t feel a noticeable difference after taking it like I had with some other brands. It also is a much fainter blue than the others I’ve taken…like it is possibly less concentrated(?) Anyhow, I could tolerate the flavor right out of the dropper unlike any others I’ve tried, but I’ll probably try a new brand next time as this wasn’t my favorite.
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Reviewed in the United States on August 14, 2025