Anyone can follow the links. Sign in as a member to track completion.

1. 01

   Thinking with tables (opens in a new tab)

   Frame a question, pick a grain, and check your joins.

   khanacademy.org

2. 02

   SQL for analysis (opens in a new tab)

   Select, aggregate, and window your way to a clean answer.

   mode.com

3. 03

   Visual honesty (opens in a new tab)

   Charts that clarify — and the ways they quietly mislead.

   storytellingwithdata.com