In this chapter, we focused on few visualization techniques. We saw how to build wordclouds and their intuitive power to reveal, at a glance, lots of the key words, moods, and memes carried through thousands of tweets.

We then discussed interactive mapping visualizations using Bokeh. We built a world map from the ground up and created a scatter plot of critical tweets. Once the map was rendered on the browser, we could interactively hover from dot to dot and reveal the tweets originating from different parts of the world.

Our final visualization was focused on mapping upcoming meetups in London on Spark, data science, and machine learning and their respective topics, making a beautiful interactive visualization with an actual Google Map.