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.
Models chooser in plain English
Part 3 of the ChatGPT product map: Instant, reasoning, Pro tiers, and Work or Codex models without FOMO. Start on the default, upgrade only when a clear prompt…
Selecting, filtering, and sorting in pandas
Map SQL SELECT, WHERE, and ORDER BY onto clear pandas patterns you can debug at work. Select columns, filter with boolean masks, sort results, and keep method chains…
What is Claude Cowork? What it does, when to use it, and when not to
Claude Cowork is the agent surface for non-coding knowledge work: folders and tools you choose, multi-step tasks, deliverables you still review. Part 3 of the Claude product map…
Custom GPTs vs plain chat
Part 2 of ChatGPT product map. When a Custom GPT earns its keep versus plain chat: saved instructions, knowledge files, plan limits on creating GPTs, and why a…
DataFrames as tables
A pandas DataFrame is just a table with rows, columns, and types you can inspect. Learn to load a CSV, check shape and dtypes, rename columns, and map…




