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Business Intelligence — from Zero to Expert

Microsoft Power BI

Connections & Power Query, data modeling, DAX, interactive visuals, security (RLS), publishing to the Service and PL-300.

7progressive levels
32detailed sections
100%free resources
ENinterface in English

🇫🇷 Version française 🇪🇸 Versión española 🌐 العربية

Updated September 22, 2026

How to follow this guide?

Guide resources

0

Level 0 — Getting started & environment

Understand the Power BI ecosystem, install Desktop and discover the BI workflow.

  1. What is Power BI? (Desktop, Service, Mobile)
  2. Install Power BI Desktop (free) & account
  3. Interface: Report, Data & Model views
Start level 0 →
1

Level 1 — Beginner: connecting, transforming & first visuals

Import data, clean it with Power Query and create your first visualizations.

  1. Connect to data (Excel, CSV, Web, SQL…)
  2. Power Query: clean & transform data
  3. First visuals: tables, charts, cards
  4. Formatting & page layout
Start level 1 →
2

Level 2 — Intermediate: data modeling & DAX introduction

Build a solid model (star schema) and write your first DAX measures.

  1. Relationships & data model
  2. Star schema (facts & dimensions)
  3. Calculated columns vs measures
  4. Introduction to DAX: SUM, AVERAGE, COUNT, CALCULATE
  5. Hierarchies & calendar date table
Start level 2 →
3

Level 3 — Advanced: DAX & interactivity

Go deeper with DAX (context, time intelligence) and make reports interactive.

  1. CALCULATE, filter context & variables (VAR)
  2. Time intelligence (running totals, YTD, previous-year comparison)
  3. Slicers, filters & visual interactions
  4. Bookmarks, buttons & navigation
  5. Custom tooltips & drill-through exploration
Start level 3 →
4

Level 4 — Expert: design, security & performance

Go professional: themes, row-level security (RLS), optimization and parameters.

  1. Themes & professional report design
  2. Row-level security (RLS)
  3. Parameters, field parameters & what-if
  4. Optimization & performance (Performance Analyzer)
  5. Dataflows & composite models
Start level 4 →
5

Level 5 — Publishing, Power BI Service & certification

Publish, share, refresh and collaborate, then aim for the Data Analyst certification.

  1. Publish to Power BI Service & workspaces
  2. Scheduled refresh & gateway
  3. Sharing, apps & Power BI Mobile
  4. Prepare the PL-300 certification (Data Analyst Associate)
Start level 5 →
6

Level 6 — Practice & mastery

Guided case studies, troubleshooting, best practices, checklists and resources to build a reliable, fast and secure Power BI practice.

  1. Guided case studies (sales dashboard, secured HR report)
  2. Quick troubleshooting
  3. Best practices & pitfalls
  4. Checklists & templates
  5. Going further
  6. Resources & references
Start level 6 →

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