Behind every clean chart is a messy spreadsheet 🧹

This is what a real data cleaning job looks like before it becomes an elegant bar chart — duplicate rows, missing values, inconsistent formatting, all sorted out with Python and Pandas.

#collage attempt: a look inside the data analyst's actual desk, not just the pretty output.

A "single source of truth" is a phrase everyone uses and almost nobody has. Usually there are three spreadsheets, two of which are stale, and a dashboard pulling from whichever one someone remembered to update last.

Fixing that isn't a bigger dashboard, it's deciding, on paper, which system owns which number, and building everything else to reference it instead of duplicating it.