We know that our brains are imperfect decision-making tools. One of the most common cognitive biases, confirmation bias, is essential to understand for anyone at the poker table or in business of any kind.Confirmation Bias: The tendency to overvalue evidence that confirms one’s existing beliefs and undervalue evidence that contradicts those beliefsEvaluate your thought process. Ask: Am I looking for signs that prove what I want to believe? Am I dismissing signs that disprove what I want to believe?Search for contrary evidence that challenges your intuition. This will give you a more accurate perspective.