Foundation
- Spreadsheet reasoning, SQL, descriptive statistics and Git basics.
- Tables, joins, aggregation, missing data and data types.
- Questions, decisions, measures and ethical handling of data.
Work With Data · Career guide
Turn messy questions and trustworthy data into decisions, metrics and explanations—not merely attractive dashboards.
Career snapshot
Three dots never means ‘better.’ It only means this dimension appears more often in the work.
What would I actually do?
Reality check
Finishing a tutorial and owning production consequences are different skills. The point is to see the gap, not hide it with hype.
You might enjoy this if…
You might dislike this if…
A realistic day
This is a plausible mix of recurring tasks, not a scripted career fantasy.
Clarify why a retention metric changed.
Trace a duplicate through a query and source definition.
Review a report with operations and record its caveats.
What should I learn?
What not to learn yet
Future You says
‘Later’ does not mean useless. It means you will learn it faster once you have a real problem for it.
AI & this career
This is not a replacement probability. Capabilities will change, so separate tasks, judgment and responsibility.
AI can draft familiar SQL and chart code, but plausible syntax can encode the wrong grain or denominator.
Student response: Define the metric first, inspect rows and test totals against an independent calculation.
AI can suggest hypotheses, but it cannot know which business event or data defect actually occurred.
Student response: Keep an evidence log and separate observations, hypotheses and verified causes.
Choosing what to measure and how to communicate consequences needs context and accountable judgment.
Student response: Practice asking who is affected, what is missing and what decision the evidence supports.
Curated learning resources
Resource count is not progress. Finish the recommended scope and build something.
Fast feedback for turning SQL syntax into usable skill.
Do this much: Complete lessons 1–12 and the exercises.
Last reviewed:
Quick practice for selecting, cleaning, grouping and checking tabular data.
Do this much: Complete the short exercises, then repeat one analysis on a small CSV you understand.
Last reviewed:
A rigorous, openly available statistics foundation for honest analysis.
Do this much: Use the free text for distributions, study design, inference and the difference between association and causation.
Last reviewed:
Next choices
From skills to a destination
The career roadmap explains what to learn. A goal guide helps you put those skills to work. Start with one—not every route at once.