C3.js is a graphing library that facilitates the creation of real-time, live-updating data visualizations with smooth transitions and a variety of chart types, making it easier to implement than traditional methods that often required complex workarounds. The introduction of the PubNub C3.js library enhances this capability by providing an easy way to update graphs in real-time through a function that wraps around C3, enabling seamless integration with PubNub channels for data streaming and publishing. Users can get started by including specific JavaScript files and initializing the eon-chart, which can be configured to display various types of charts such as spline, gauge, donut, and bar charts, and can auto-populate using the PubNub history feature. This integration encourages creativity in data presentation and supports all C3-supported graph types, allowing for unique and dynamic visualizations, with additional resources like demos and tutorials available for further exploration of real-time data streaming.