All Articles & Tutorials
Explore practical guides, step-by-step masterclasses, and foundational definitions across AI, SQL, and data systems — written in plain, human English.
All articles
How to set up Python for data analysis without getting stuck
Set up Python for analytics without the folklore that scares people off. Create a virtual environment, install pandas with pip, and load a tiny CSV so your first…
ChatGPT privacy at work: what to check before you paste anything
Privacy, company policy, and the right tool matter more than clever prompts. Use this series-end guide for when not to use ChatGPT, a good-enough checklist, and what to…
When not to use Claude: jobs where it is the wrong tool
Closes Learn Claude from scratch with judgment: four wrong-tool zones, a good-enough checklist, walk-away signals, and what comes next in the product map, Code, and Cowork series.
Why Python for analytics (and when to stay in SQL or Sheets)
Python is optional for many analytics jobs, and that is a feature, not a failure. Learn when Sheets or SQL still win, when a notebook saves real hours,…
When not to use Grok: six jobs where a wrong answer costs too much
Six jobs where Grok is the wrong tool: confirming news from X, anything private typed into Grok on X, pictures of real people or brands, exact numbers, licensed…
