Naturally, #DataCamp's courses only cover the parts that are relevant to "data science / data analysis", so it feels like there are some holes. But I had forgotten how much fun #Python could be, and I'm enjoying #R-lang also. (The courses themselves are often frustrating as can be, but the parts of the languages themselves that I'm exposed to are mostly okay.)

Their continuing practice exercises seem to emphasize the smallest tripping factors, but I guess that will be useful if I'm ever paid to use these languages for data analysis.