Power BI Crash Course

Power BI has revolutionized decision-making by turning raw data into actionable insights, making it a critical skill for modern business professionals. Power BI Crash Course is a comprehensive roadmap that helps you build an understanding of Power BI fundamentals through advanced enterprise implementations.

The book begins with foundational concepts, including data connections, Power Query transformations, and data modeling with star schemas. You will progress through advanced DAX calculations, time intelligence functions, and performance optimization techniques essential for professional-grade analytics solutions. This book uses an integrated sales dataset to show how features combine in real-world business intelligence.

By the end of this book, you will be able to master techniques for managing datasets with millions of rows, implementing incremental refresh, and using aggregations for optimal query performance. The comprehensive capstone project will challenge you to build a complete BI solution for a fictional retail company, integrating all learned skills from data preparation through final deployment.

WHAT YOU WILL LEARN
● Connect to data sources and transform raw data into analysis-ready formats.
● Design optimized data models with relationships, hierarchies, and performance considerations.
● Create DAX calculations for complex business logic and time intelligence analysis.
● Build interactive dashboards that effectively communicate insights to stakeholders.
● Implement enterprise features including security, governance, and AI-powered analytics.
● Optimize performance with query folding, incremental refresh, and aggregations.

WHO THIS BOOK IS FOR
This book is ideal for business analysts, data analysts, BI developers, and IT professionals. Beginners with basic data concepts and Excel familiarity will find clear progression from fundamentals to advanced topics, and the experienced users can deepen their expertise in DAX optimization, performance tuning, and enterprise deployment strategies for building professional analytics solutions.

1. Introduction to Power BI and Connecting to Data Sources
2. Data Preparation with Power Query
3. Designing Efficient Data Models
4. DAX for Data Analysis
5. Building Reports and Dashboards
6. Power BI Service and Collaboration
7. Integrating Power BI with Other Tools
8. Advanced Analytics with Power BI
9. Dataflows and the Common Data Model
10. Power BI Administration and Governance
11. Performance Optimization Techniques
12. Capstone Project and Next Steps

Olalekan Adeeko is a Microsoft Most Valuable Professional, Microsoft Certified Trainer, and Power BI Analyst with deep expertise in data analytics, business intelligence, and digital skills education. He has trained and mentored individuals and organisations across Africa and beyond, helping them apply tools such as Power BI and Excel to improve productivity, reporting, and decision making. His work is grounded in practical use cases, clear thinking, and real world impact.

He is the co-founder of TedPrime Ltd, where he designs data solutions and delivers hands on training for professionals in education, finance, government, and the private sector. Olalekan has led sessions at Microsoft events, participated in international programmes including the Fulbright Teaching Excellence and Achievement Program in the United States, and attended Microsoft Education Exchange programmes in Singapore and France. He is a recipient of the African Union Continental Teacher Prize and holds qualifications in data science and big data analytics, with a first class degree in computer science education.