Top 50 cognitive biases list.
Heuristics (shortcuts) in thinking.
Our minds constantly take shortcuts. To cope with the vast amount of information, we create unconscious patterns that help us quickly assess situations and make decisions. However, sometimes these mental simplifications lead us astray. This systematic, irrational error in thinking is called a cognitive bias.
It influences our conclusions, emotions, and behaviors, often without our knowledge or consent.
The most common example is buying something just because it is on sale – without consciously considering whether we need it.
In this paper, we will explain what cognitive biases are, how they differ from heuristics, and show their impact on our everyday lives.
We will also present a list of 50 cognitive biases in the form of infographics and provide practical tips on how to recognize and eliminate them.
What is a cognitive bias? How does it differ from a heuristic? Definition.
A cognitive bias is an irrational error in our thinking that influences our conclusions, emotions, and solutions —our decisions, laws, and behavior.
Other specific terms can be used to describe irrational perceptions of reality.
This concept was popularized by psychologists Daniel Kahneman and Amos Tversky in the 1970s. Their definitive research on judgment and decision-making under risk, which identified many of these biases, earned Kahneman the Nobel Prize in Economics and laid the foundation for a new field: behavioral economics.
Such errors often arise from the use of heuristics — simplified rules of thought, or mental shortcuts. Heuristics are quickly applied, avoiding unanalyzed decisions, which is crucial when an event occurs.
The problem arises when mental shortcuts lead to systematic errors in a situation. It's important to distinguish heuristics (mental tools) from the cognitive outcome (the potential negative consequences of their use).
Cognitive biases fundamentally influence how we remember events. They lead to simplified and distorted memories of information. In this case, we only remember data that is actionable. The primary reason is that our behavior is inappropriate.
Another reason is the scientific fact that our minds like to take shortcuts. Why? First, because consciously processing all the information we receive takes a long time. Second, because our brains expend more energy creating information and available options that are not aligned with already established, fast neural pathways.
Our judgment is particularly impaired in uncertain situations. Unconscious cognitive biases often occur when decisions must be made quickly or (due to external factors) we are forced to make judgments based on incomplete information.
We tend to resolve uncertain situations without considering the probability of an event occurring.
Situations in which we are under time pressure or the influence of strong consequences are described as a state of limited cognitive resources. These limitations are often considered noticeable in forming accurate judgments.
The best solution is a tendency to overvalue information that is readily available to us. In this way, we quickly discuss the issue, completely ignoring the rest.
Top 50 cognitive biases list. Psychology of decision-making.
Negative influence on our thinking.
According to Wikipedia, there are 188 cognitive biases described in psychology to date.
Our library contains the 50 most important cognitive biases.
We present each example of a cognitive bias in the form of infographics.
These infographics are free to download and use!
The list of cognitive biases in the graphical library is not all that we have prepared for you. You will also find more detailed descriptions of the five biases we believe are most common in the 21st-century Western world.
Furthermore, at the end of this guide, you will find specific tips explaining in 5 steps how to identify and eliminate cognitive biases and avoid them in the future.
And there's also one additional surprise waiting for you!
And in everyday life, naive realism is probably the most common affliction of all of us. It's a powerful source of misunderstandings, disputes, and conflicts (infographic no. 14).
Other biases include the fundamental attribution error, confirmation bias (also known as self-fulfilling predictions), the halo effect (also known as the halo effect or first impression), the blind spot effect, the availability heuristic, and the decision support bias.
The availability heuristic involves relying primarily on readily available information and not making the effort to analyze other data in greater depth. It occurs very often when investing financial resources.
The decision support bias is the tendency to remember our own decisions better than they actually were. This tendency is to remember the arguments for a decision better than those against it. And this has a detrimental impact on our subsequent choices.
One of our favorite biases is the Dunning-Kruger effect. It can be summed up in this elegant sentence:
"Ignorance is a blissful state."
Because if you don't know that you don't know something, you don't worry or stress.
You can find this error below in infographic no. 17.
If you have reached this place, I have a special gift for you.
At the link below, you will find the most complete Library of cognitive biases
shown on one infographic:
And if you are strongly interested not only in the topic of cognitive biases but also in topics such as:
Critical Thinking.
Fallacies of Logical Thinking,.
Creative Thinking.
Brainstorming.
at the link below, you will find very attractive infographics, posters, and visualizations, available both in electronic and physical form, including, among others, a free poster and Interactive Libraries:
The five most important cognitive biases that are worth knowing and working through.
What cognitive biases should you pay special attention to? Which cognitive distortions do we encounter most often in everyday life?
We did not find reliable sources that provide research-backed information on the most common cognitive biases. And such a list would likely be different, depending on geographic culture, gender, age, and professional profile.
So we present our subjective list of cognitive biases that affect us the most in today's world — both at work and in private life:
1. Anchoring effect.
This bias has a big impact on our decision-making. For example, purchasing decisions. It is a tendency to rely too much on your own past experiences or on information frequently repeated in the media or in commerce. We anchor ourselves in what we already know (or have been told a lot of) and thus can be manipulated or limited in our choices. For example, how not to take advantage of price reductions?!
And let's do it fast because promos will not be available soon (albeit in today's world, the reductions are endless).
2. The effects of false consensus and naive realism.
False consensus cognitive bias can affect almost all aspects of our lives. It is associated with all situations when we communicate with other people. It is the illegitimate belief that others think the same, that "everyone knows it", that it is "obvious". We do not allow ourselves, or we do not realize that someone can think differently from us. In a face-to-face conversation, we do not actively hear the opposite opinion. We are deeply convinced that others agree with us (Card 8).
This cognitive bias is very similar to the naive realism bias. In the latter case, we are deeply convinced that we always see objective reality, that "this is how it is", that "this is how the world is". This is a strong source of confusion, especially in direct communication between people. To properly illustrate Naive Realism, it is enough to look at Card No. 14.
3. Stereotyping and in-group favoritism.
Today's world is becoming more globalized, but paradoxically, more and more divided. We are more afraid of what we do not know or understand. And we don't want (or don't have time!) to make an effort to understand something first.
This is what the cognitive biases of Stereotypes and In-Group Favoritism are about. We make judgments about others very quickly, without checking important details (sometimes without checking anything), and very quickly assign general characteristics based on only random details, such as whether they belong to "our" group.
Practicing critical thinking, curiosity about the world, and an attitude of openness and humility can help a lot in overcoming these two cognitive biases. This can be achieved, for example, by working in an international environment.
Cognitive biases in the therapeutic context: the role of cognitive behavioral therapy (CBT).
It's worth noting that cognitive distortions are also a key concept in psychotherapy, particularly cognitive behavioral therapy (CBT). This therapy is based on the premise that our thoughts, emotions, and behaviors are closely interconnected. CBT therapists help patients identify negative, automatic thought patterns (which are often a form of cognitive biases) and then learn to challenge them and replace them with more realistic and healthy beliefs.
Working on cognitive biases in therapy is an effective way to treat conditions such as depression, anxiety disorders, and low self-esteem.
Example: Recognizing and reframing catastrophizing patterns significantly improves quality of life. Overcoming the habit of imagining worst-case scenarios improves both professional and personal life and positively impacts sleep quality.
Why are cognitive biases dangerous in business?
In a business environment where decisions can cost millions, the impact of cognitive biases is particularly acute. They can lead to:
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Recruiting biases: the halo effect causes us to judge a candidate based on a single positive impression, ignoring other competencies. In turn, group bias can lead us to hire people similar to us, limiting diversity and innovation in the team.
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Incorrect risk assessment: optimism bias can lead to underestimating project time and budget, while the availability heuristic can cause us to overestimate the risk of events that are widely reported in the media and ignore more mundane but more frequent ones.
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Bad strategic decisions: Confirmation bias causes us to seek data that confirms our initial thesis, ignoring warning signs. Groupthink, in turn, can stifle critical voices in management, leading to unanimous support for a flawed strategy.
Our personal experience shows that one of the most common cognitive biases in the corporate world is the curse of knowledge (or curse of expertise bias). It causes many misunderstandings in communication (infographic no. 9).
Groupthink bias is equally common in business environments. So-called "management teams" often suffer from this condition (infographic no. 5).
Unfortunately, these teams often blame others for failure and take credit for success—a so-called self-serving bias. And top-level business leaders often suffer from the better-than-average effect, a tendency to rate themselves much higher than others.
How do marketing and sales exploit our tendency toward cognitive biases?
Representativeness bias (i.e., an incorrect assessment of the probability of an event based on the previous occurrence of a similar event) often occurs in marketing.
This happens in two ways. On the one hand, companies can target their campaigns to the wrong audience, mindlessly copying successful competitors. On the other hand, ads embody copied thought patterns designed to resonate with audiences and activate them in situations where common sense can easily be overridden.
Another concept exploited by advertisers is the isolation effect, or our tendency to better remember objects that stand out in some way from their surroundings. One could even say that in the third decade of the 21st century, the motto for many people has become " Stand out or die! "
And in direct sales, the peak-end effect reigns supreme. It's our tendency to judge experiences solely based on the most emotional moment (even though the information provided at that moment may actually be irrelevant to making the right choice for us) and the very end of the conversation. These are the two moments we remember most vividly.
What are some practical techniques for combating cognitive biases?
In addition to changing your mindset, there are several proven methods you can implement to make more objective decisions. Here are a few:
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Use pre-mortem analysis: Before making a major decision, imagine that a year has passed and the project has failed completely. Consider what might have led to this. This technique helps identify potential weaknesses and threats that might have been overlooked due to overoptimism.
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Seek outside perspectives: Actively seek out the opinions of those with different experiences and perspectives. You can appoint someone on your team to act as a "devil's advocate," challenging prevailing assumptions. This helps counteract groupthink.
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Practice mindfulness: Regular mindfulness practice helps you become more aware of your thoughts and emotions. This makes it easier to notice when automatic, biased thinking takes over and consciously stop it.
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Slow down your decision-making process: Many cognitive biases stem from rushing. When possible, give yourself more time to analyze information, consider alternatives, and consider consequences rather than relying on your first intuitive answer.
In the next section, you'll find a concrete five-step plan with detailed descriptions of each step. This structured approach will help you recognize and eliminate your harmful patterns.
A 5-step plan for recognizing and eliminating cognitive biases.
Below you will find specific tips that explain in five steps what is needed and what should be done to, firstly, develop the ability to identify such mistakes and, secondly, avoid making them in future events.
1. Accept that you may have prejudices. And then be mindful.
The truth is that we all have unconscious biases or make cognitive biases. This is due to the culture in which we were born and brought up, for example. So you need to start by accepting this fact, then carefully track down your unconscious biases and work to change them.
Paying attention to your thoughts and verifying your beliefs can help you identify the assumptions you are currently relying on. For example:
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Do you believe people will always talk when they disagree?
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Do you think showing emotions — like crying at work — is a sign of weakness?
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What do you automatically think of a person who misses a deadline?
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What do you think about your teammates who are usually quiet in meetings?
The key is to pause for a moment and examine your beliefs so that you can see the other person as they really are. Especially in the work environment these days, it may not be easy. We have times when we are focused on results and rushing at incredible speed. As a leader, you may easily think you don't have time to play like this. However, spending a few minutes asking yourself questions can make a huge difference to you and your team. At the last point of this list, you'll find very specific questions that you should practice asking regularly. In this way, you will actually build a completely new, invaluable competence that will save you from many mistakes in the future.
2. Be open to other opinions, accept disagreement, even conflict.
Wanting affirmation is human, especially when you are a leader. But an important leader's task is to look at how behaviors, actions, and words affect the team. So, to avoid automatic cognitive biases, start practicing openness to disagreement (not declaratively, but truthfully). And start practicing this attitude in small steps.
You can, for example, start with an honest conversation with a "difficult" person. To understand how she perceives you and what you might start doing differently (God forbid, not to argue with her and prove that she is wrong).
A very common case of a large, unarticulated misunderstanding between a leader and a subordinate is when the subordinate feels micromanaged. His experience and autonomy are diminished, and you think that you are helping him overcome challenges and supporting him.
You can read more about it in the dedicated Manager as a Coach section.
3. Let others question your assumptions.
Our view of ourselves is made of our life experiences and the lessons we learn along the way. We usually develop unconscious biases and fall into the trap of cognitive bias as a result of what we have been taught and the observations we have made during our childhood and adolescence — at home, at school, in conversations with friends, and through the media. The most hidden and enduring beliefs usually result from the suffering we have experienced.
When someone questions these long-held beliefs, we may find it inconvenient and even dangerous. So at first, there will be resistance. As someone wisely said:
"Most people don't want the truth. They just want confirmation that the illusion they live in is true."
Instead of being defensive, pay attention to your immediate reaction. Before acting, take a deep breath and try to change your attitude. Approach the situation with curiosity and positive intention. For example, as you approach an experiment that might answer the question: "What if..."
Your previous cognitive biases do not have to be dead ends. Each confrontation is an opportunity to bend a new path, and (if you are a leader) to improve your leadership. As a leader, you decide what kind of atmosphere you create around you. And by being authentic and open to other points of view, you will naturally create a space for others to do similarly. Otherwise, you may still be under the (mis) belief that if no one is questioning your opinion out loud, everyone agrees!
4. Take different perspectives.
With people whose worldview differs from yours, it is worth not only exchanging feedback but also regularly interacting and building meaningful relationships. It is often the case that two strong personalities who fight each other at first, like worst enemies, later become best friends.
But even if you engage in debates with people of different viewpoints, the experience will broaden your thinking and encourage you to be a more inclusive and creative individual. What is more, such debates will teach you how to talk to people with a different worldview, how to reach them, and how to convince them of your view. This is another invaluable skill, especially in today's business world.
I also encourage you to take a critical look at your network of contacts. Aren't most of these people "just like you"? If you work in an international environment, how big is the presence of, for example, Asia, South America, or Africa in your network? It is also worth considering when you last read a book other than any one from your own culture.
Learning to adopt different perspectives may seem difficult at first, but the conscious effort will help. Change of any kind is inconvenient. The most important thing you can do as a leader is to prepare for this discomfort. Each phase of your leadership journey will require you to dedicate time to introspection and emerge as a more self-aware person.
5. Start practicing self-coaching on a regular basis.
On our blog, you will find a series of articles on self-coaching. This method of personal development can be very useful for more mature and experienced people. And extremely effective in identifying and correcting your own cognitive biases.
And if you don't have time to read a series of articles (sic!), Here is a list of some examples of questions you can work with:
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What are my most fundamental beliefs?
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How can these beliefs limit or enable my colleagues and me to work?
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How do I react to people from all walks of life? Do I stick to stereotypes or assumptions about a particular social group?
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As a manager, how do I recognize and benefit from diversity in my team?
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How would my team describe my leadership style if they shared their experiences with me?
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How much do my words and actions reflect my intentions?
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How often do I put myself in the shoes of another person and try to understand the reasons for their point of view?
And if you're ready to learn more about what your colleagues or other people at work really think about you, here are some examples of phrases you can use:
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What one thing that I do would you mention as making us drift apart?
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Thank you. I didn't realize it. I work on myself and understand that we all have unconscious biases or make cognitive biases. What else can you share with me about the impact of my actions?
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I really appreciate you sharing this with me. What else did you notice that I should know?
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I didn't think of it that way until you shared your views. Could you say more?
We all make mistakes and carry cognitive biases within ourselves. We hope that the mechanisms we've described, supplemented with very practical tips, will help you minimize risk to zero and become a helpful tool supporting not only sound business decisions, but also those in your personal life.
And if you'd like to learn even more, we invite you to read a special article on our blog that describes the boiled frog syndrome, the Pollyanna effect, and the tall poppy syndrome. These three syndromes are very characteristic of the 21st-century business environment. The employee-as-boiling-frog phenomenon is an exceptionally interesting psychological phenomenon, and many people experience this effect in a very painful way.
Summary: awareness is the key to better decisions.
Cognitive biases are an inherent part of the human mind, built into our operating system by evolution. The point isn't to eliminate them entirely, but to learn to recognize them and consciously manage their impact.
Please remember that the first and most important step is simply being aware of them. Regular self-reflection, openness to other perspectives, and application of the practical techniques we've discussed can significantly improve the quality of your decisions—both professionally and personally.
Which of the cognitive biases described do you notice in yourself, and what is one small step you take today to start working on it?
Kind regards,
Certified business coach.
Author of infographics.
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