Data Analysis: with Excel, Power BI, and Tableau (Technical Skill Books By Sanjay Mandavi)

Data is everywhere—flowing from businesses, governments, hospitals, schools, apps, and even the phones in our pockets. But data by itself is meaningless unless we know how to clean it, analyze it, and tell a story with it. That’s where data analysis comes in.

This book is your step-by-step guide to mastering data analysis using three of the most powerful tools in the world: Excel, Power BI, and Tableau.

• In Excel, you’ll learn formulas, PivotTables, Power Query, and dashboards.
• In Power BI, you’ll explore data modeling, DAX, interactive dashboards, and sharing insights.
• In Tableau, you’ll dive into visual storytelling, advanced charts, and creating compelling dashboards.

Along the way, we’ll cover data cleaning, visualization principles, business case studies, and advanced analytics techniques.

What makes this book unique is its simple language, practical approach, and real-world projects. Every concept is explained with clarity, and you’ll find exercises, checklists, and cheat sheets to make learning hands-on and enjoyable.
By the time you finish, you will not only know how to use the tools but also how to think like a data analyst—asking the right questions, solving real problems, and communicating insights that drive decisions.

In short: This book is not just about tools. It’s about building a data-driven mindset that will help you in your career, business, or personal growth.