Almost everyone has cognitive bias, and they affect our decision-making, often leading to errors in reasoning or judgment. Examples include confirmation bias, where people favor information that supports their beliefs, and availability bias, where recent or readily available information is given undue weight.

Understanding cognitive bias helps us make more informed and rational decisions by recognizing and overcoming mental shortcuts that can lead to errors in judgment.

Here are some good books:

• Thinking, Fast and Slow by Daniel Kahneman
• Predictably Irrational by Dan Ariely
• The Art of Thinking Clearly by Rolf Dobelli

And articles:

• How curiosity can protect the mind from bias - BBC Future
• List of cognitive biases - Wikipedia
• Cognitive bias cheat sheet. Because thinking is hard. | by Buster Benson | Better Humans | Medium
• Investor Psychology: Understanding Behavioral Biases | Toptal