What we all love about data is it's objective nature. It's not moody, it doesn't create drama, it is clear in the most basic sense. However, until robots will take over the world, it's still humans who will be sourcing, manipulating and interpreting this data. Unfortunately, humans are cognitively biased in a systemic way. This flawed perception of data leads to misinterpretation which can, depending on the severity of the situation, have dramatic consequences. In this talk we will discuss the most common biases in data analytics, which tactics work to avoid these biases and eventually how looking at data correctly can even make you happier in life.