What makes a data graphic better or worse? What choices do data graphic designers make, and how do they make them? How do you create good data graphics? What are the principles of data graphic design? How are those principles reflected in code?
How can we transform data from one arrangement to another? What are the basic set of operations that are common to many kinds of data transformation? Are there theories that govern the process by which data is transformed?
How can we perform operations many times without copying-and-pasting code? How can we generalize our pipelines into functions? What are ethical considerations of data science products?
What makes geospatial data special? What data structures are available for geospatial data? How does space and location affect the way we draw data graphics? What aesthetic considerations are specific to geospatial data?