Step-by-Step Guide to Building a Tableau Dashboard and Story for Your Portfolio

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A practical guide published on DEV Community walks users through creating a published Tableau dashboard and three-point story using the free Telco Customer Churn dataset from Kaggle, which contains 7,043 customer records. The tutorial instructs readers to build four focused worksheets — a single summary number, two bar charts, and a scatter plot — then arrange them on one dashboard screen. A separate story feature sequences three of those views with captions to guide the audience toward a clear recommendation. The guide emphasizes preparing data upstream in SQL, Python, or Excel before connecting to Tableau, outlining specific formatting rules such as one row per record, binary outcome columns, and readable field names. The finished workbook is hosted on a public Tableau Public URL, making it suitable for job applications, though the guide cautions that publishing also makes the underlying data publicly downloadable.

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