As an English teacher, I always enjoyed compendia–those books that listed the number of times words appeared in other books. It isn’t that the number of words used mean anything themselves, but they do serve as fodder for new kinds of questions we can ask. The compendia spirit was recently rekindled when I came across this fantastic data visualization and story about hip-hop lyrics. Specifically, the authors examine what words are unique to which artists.The result is a fascinating exploration by folks over at The Pudding teachers and students alike can count on.