ge ne at ing data data visualization involves exploring data through visual representations it' closely associated with data miningwhich uses code to explore the patterns and connections in data set data set can be just small list of numbers that fits in one line of code or many gigabytes of data making beautiful representations of data is about more than pretty pictures when you have simplevisually appealing representation of data setits meaning becomes clear to viewers people will see patterns and significance in your data sets that they never knew existed fortunatelyyou don' need supercomputer to visualize complex data with python' efficiencyyou can quickly explore data sets made of millions of individual data points on just laptop the data points don' have to be numberseither with the basics you learned in the first part of this bookyou can analyze nonnumerical data as well people use python for data-intensive work in geneticsclimate researchpolitical and economic analysisand much more data scientists have written an impressive array of visualization and analysis tools in pythonmany