Data visualization is becoming more and more important. This fact is caused by their amount and variety. Every day millions of information are produced and stored in electronic devices. When we are not able to analyze them and make conclusion, these data are not useful. One of aims of data visualization is to make data analyzes more simple and clearly convey most important facts, connection and relations between fact.
But there are also other import aspects in data visualization. Martin M. Wattenberg says that visualization should also attract people and stimulate them. Stimulation can be enabled also using side-technics like data sharing. This can stimulate conversation and bring deeper understanding. But putting data in facebook is not enough. When these data are not attractive, poeple will not notice them. New TV Shows showed that people are interested in emotions and impressive and expressive. Yes, i tis good way, how to attract people. Fernanda Viegas and Martin Wattenberg say that it is not necessarilly bed to put emotions in data visualisation. On the one hand they are right, because i tis good to provoke people and bring them into discussion about data, but on the other hand this visualisation can bring fallacy to people who are notu sed to discuss and impress their opinion. There is risk, that this group of people could be manipulated because they just absorb these data without realising that they absorbed somebody‘s subjective view.
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