Category: Tutorials
You are in the right place if you want a lesson you can follow, not a glossary and not a product homepage. This shelf holds most of the articles on Analytics Made Simple. Two paths sit inside it on purpose. SQL is the database path: you have rows, and you need to ask a question without exporting another spreadsheet. AI is the tool path: chat products, open-weight models, and the jobs those tools are actually good at. Other tutorials land here when they teach a skill that does not belong on a narrower shelf.
A category page is the pile. A series page is the path, with a place to start and an order. If you open a tag or page 2 of this list, you are in a filing cabinet. The lesson is the article, or the series hub that lines the articles up.
Where to start: if the pain is a table, open the SQL series and use the first part on that page. If the pain is a model name or a chat tool, open the AI category and pick the product you already have on screen. If you are not sure which job you have, open Learn and choose the track that matches the work, not the logo.
Install / open Claude Code and first run
Part 1 of the Claude Code tutorial. Install with native scripts, Homebrew, or WinGet, verify with claude –version, log in, pick a surface, and survive first run with…
Better answers with structure and examples
Part 2 of the ChatGPT everyday tutorial: role, goal, constraints, example, and format. Weak vs strong prompts, micro-examples, and a diagnose-patch-rerun loop when Chat is wrong.
Missing data and dtypes
Nulls, empty strings, and bad dtypes break joins and totals in quiet ways. Learn safe pandas casting with coerce, careful fill versus drop, and a symptom-to-fix table you…
API and console: only if you build apps
Part 6 closes the Claude product map: chat subscriptions and the API Console are separate bills and separate jobs. Open platform.claude.com only if you build software that calls…
First week of useful tasks (write, plan, learn)
Part 1 of the ChatGPT everyday tutorial: a Mon-Fri week in plain Chat with write, plan, and learn buckets. One real deliverable per day, worked prompts, and no…




