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Power BI Guides & Tutorials
Master Power BI — DAX, Power Query, data modeling, dashboard design, deployment and the interview questions employers ask.
Power BI articles
Power BI Roadmap 2026: From Beginner to Job-Ready
A stage-by-stage Power BI roadmap from a first report to job-ready skills: preparing data, modelling, DAX, report design, publishing and security, then proof through projects, with a concrete checkpoint that shows when each stage is done, the role Microsoft describes for Power BI analysts, and common detours.
DAX Guide: Measures, Calculated Columns and Context
The foundations of DAX in Power BI: the five places a calculation can live, how to decide between a measure and a calculated column, what row context and filter context mean, why an averaged margin column came out at nearly double the true margin on real data, iterators, and habits for writing reliable measures.
Power Query Tutorial: Transforming Data Without Code
A working tutorial for Power Query in Power BI Desktop: the applied-steps model, the profiling setting that hides problems, data types, the unpivot option that survives refresh, query folding, and how to structure queries so a report still refreshes next month.
Power BI Projects to Build for Your Portfolio
Five Power BI portfolio projects, each proving a different skill (a star schema with time intelligence, performance on millions of rows, Power Query reshaping, row-level security and a report for a real user), with datasets you are allowed to publish and what a reviewer will check.
Power BI Interview Questions: Top 40 with Answers
Forty Power BI interview questions with concise answers checked against Microsoft's documentation, from fundamentals and Power Query through star schema modelling, DAX and filter context, report features, the Power BI service, security and performance, to scenario questions that test judgement, and how to answer well.
Power BI Dashboard Design: A Practical Guide
Designing Power BI reports and dashboards: the difference between the two in the Power BI service, planning for the audience, laying out a page, choosing visuals and formatting numbers the way Microsoft recommends, interactions and navigation, accessibility, performance, and a checklist to review any page.