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
What is Grok? xAI’s many AI names, explained
Confused by the difference between xAI, Grok, and the X platform? This plain-English guide breaks down exactly what Grok is, how the models evolved from Grok 2 to…
What is ChatGPT? A plain-English guide
ChatGPT is OpenAI’s AI assistant family, not one single app. This Part 1 map separates company, models, and products so you can start on web, mobile, or desktop…
What is Claude? A plain-English guide
Claude is Anthropic’s AI assistant family, not one single app. This Part 1 map separates company, models, and products so you can start on web or mobile without…
Common analytics traps
Survivorship, cherry-picking, averages of averages, wrong grain, and lonely numbers. Spot the traps that make clean charts support bad decisions.
How to write a one-page analytics brief
Stop starting with the warehouse. Use an eight-field one-page analytics brief to turn vague stakeholder asks into decision-ready work before you write a single query.
