10 Most Used Tableau Functions by Abid Ali Awan via @kdnuggets

Learn about the most used string, number, date, logical, and aggregation Tableau functions.

These are useful to know.

24 Key Concepts to Know for Mastering Python Functions by Yong Cui via @BttrProgramming

Check the breadth of your Python knowledge.

I really enjoyed going through this and it told me that I wasn't as knowledgeable as I thought I was (which is always a good thing as it meant I learnt something and improved!).