Excellent

Based on 2,300+ reviews

Killed a Bad Project

Pulled Sunk Cost Fallacy in a review and we finally shut down a product we'd babied for a year.

Rafael Nogueira

Jun 2nd

Use It With Clients

I hand a client one card and the whole conversation about their forecast changes. Great in strategy sessions.

Lieke Verhoeven

1 week ago

Worth the Print

Thick card stock, matte finish, and the illustrations actually help me remember which bias is which.

Priya Ramanathan

3 days ago

Skeptical at First

Thought it'd be pop psychology. It's not. Every card ends with something to actually do.

Tobias Lehmann

Apr 18th

Fast and Clear

Reads in six seconds and lands every time.

Adaeze Okonkwo

2 days ago

My Team Uses It

We run the Groupthink card before every big greenlight now. It has caught two bad calls.

Marcus Bergsma

May 21st

Good for Hiring

The Halo Effect card changed how I read interviews. I score traits separately now.

Siti Rahmah

Mar 29th

What's inside the Deck

50+ bias cards, sorted by where your thinking actually breaks down.
Decision-Making & Belief Biases
Memory & Recall Biases
Attention & Perception Biases
Social & Attribution Biases
Probability & Statistical Biases
Emotional & Motivational Biases

See How Easy It Is 👇

1

Feel stuck? Grab the deck.

2

Pull a card. Read it in a few seconds.

3

Do the small thing. Momentum takes it from there.

Grab Your Deck Now!

Who is it for?

Founders and decision-makers Catch the thinking error before it becomes a pricing call, a hire, or a pivot.
Consultants and facilitators Give a client the name for what just derailed their meeting, in one card.
Teams making decisions together Run a bias check before a greenlight instead of a post-mortem after it.
The card deck is an educational and reference tool. It is not professional business advice, and results depend on your situation and how you apply it.

Books in Card Form

Our Decks

Our Decks

One card, one idea, one action

Open anywhere, start anywhere

Share a card to discuss

Fits a 5-minute break

Deal cards to a whole group

Comes back to your desk daily

Books

Books

One idea spread across a chapter

Start at page 1, finish at page 200+

Read 5 pages to discuss

Needs a free evening

Everyone bought the book?

Goes back on the shelf

* Want the full context? Read the book too. We made these for the days you won't.

It’s a tool that helps me understand the purpose of customer service!! Super!

Jesús Alejandro S.

I am new to marketing. Thanks to insightdecks, I can grasp to marketing concepts on-the-go, wherever. One thing I enjoy about the decks is, it provides clear action plans for every concept.

Wan Zokhri I.

I like to use them for my own personal development :).
Would definitely buy other decks.

Thanh Luan N.

Thank you for the card. My boss shared his selected card with the other leaders and provided a brief insight. Everyone is now sharing their reflections.

Koge G.

Great deck. Very useful for me, who is AuDHD. The cards are made of great paper, not too thick but not too thin, either. I think I will buy more decks in the future.

Marcos H.

The brainstorm deck arrived along with an ice storm. I was delighted that when the power went out in my area my project was able to kick into high gear.

Jonathan C.

The cards are better than I expected. Very useful in therapy work!

Johanna I.

I love seeing my decks every morning, just to remind myself the state of my emotions, as well as what I am wanting to achieve (emotionally). I would love to buy more decks on marketing, and other professional development.

Wan Zokhri I.

It's Not a Logic Problem 🤯

You already know the project isn't working. You knew last quarter. But you've put eight months into it, and every meeting ends with one more fix. This deck skips the argument and hands you one question to ask instead.

Grab Your Deck Now

For the Decision Meeting 🧠

Seven groups named after the decisions that actually stall the work: people calls, forecasts, sunk costs.

If a check needed a data team and two weeks of analysis, it didn't make the deck.

Grab Your Deck Now

What people say about us ❤️

Third deck I've bought. Same quality every time.

Femke B.

Verified customer

I use them with clients and they always ask where I got them.

Oluwaseun A.

Verified customer

The shipping took longer than I hoped, but the deck itself is excellent and I'd order again.

Camila R.

Verified customer

Perfect gift for the person who reads too many business books and applies none of them.

Jonas W.

Verified customer

Good for solo thinking when there's nobody around to check your logic.

Meera K.

Verified customer

I have several from the catalogue and this one gets used most.

Stefan D.

Verified customer

We keep a set in the meeting room. It settles arguments fast.

Yusuf E.

Verified customer

Bought four decks this year. No regrets.

Hannah V.

Verified customer

My team lead started buying these for everyone after seeing mine. That says enough.

Rohan P.

Verified customer

Insightdecks

Got a Few Questions?

Who is this product for?

The deck is perfect for:

  • Investors & Analysts evaluating pitches, forecasts, and track records under time pressure.
  • Managers & HR Leads running hiring, reviews, and promotion decisions they want to defend.
  • Marketers & Product Teams reading customer feedback without projecting their own assumptions onto it.
  • Students & Lifelong Learners who want critical thinking in a format they'll actually revisit.
What does the card deck include?

The deck includes 50+ cognitive biases across 7 categories: Decision-Making & Belief Biases, Memory & Recall Biases, Social & Attribution Biases, Probability & Statistical Biases, and Cognitive Shortcuts (Heuristics). Each card includes:

  • A plain-language definition of the bias and how it shows up
  • Why it matters, with the specific decisions it quietly distorts
  • A trap to notice, a pattern to break, and a tool
  • A real-world business example plus one question for reflection
What formats are available?
  • Digital version: Instantly accessible and downloadable.
  • Digital + Physical version: Includes the digital version and a beautifully designed physical card deck shipped to your address.
What is the return policy?

Due to the digital nature of the product, refunds are not available for the digital version. For the physical version, if your product arrives damaged, please contact us within 14 days for a replacement.