IT Career Guides & Free Resources
Expert roadmaps, tutorials, salary guides and interview prep across Data Science, Generative AI, Python, Cloud & Analytics — written by GloryTecks trainers in Hyderabad.
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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.
Excel vs Power BI: Which Should You Learn First?
Should you learn Excel or Power BI first? For most beginners, a slice of Excel first, then Power Query and the data model, which Excel and Power BI share, and then Power BI. Here is why, what each tool teaches on its own, and which to start with in your situation.
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.