Access required

Sign in to unlock the Data Visualization test.

16-question assessment on the principles, grammar, and craft of data visualization — chart selection, encoding, perception, and the most-cited failures. Pass to earn a verifiable certificate signed by Stephen Omukoko Okoth, Program Director.

I have a code

Redeem and start →

Creates your account, six-month clock starts now.

I need a code

Get access →

Pay via M-Pesa — KES 2,500 for 3 months. Or request access from outside Kenya.

Already have an account?Sign in →

The reference libraries and existing courses (DCF, Investment Banking, Python, R, Stata, SQL, Econometrics, Financial Statements, African Macro) remain free. Premium access unlocks the AI for Analysts course, all skills tests, and the in-course AI tutor.