Get comprehensive coverage of Power Query M formula language and functions to build better data models and business intelligence reports Purchase of the print or Kindle book includes a free PDF eBook Data transformation is a critical step in building data models and business intelligence reports。 Power Query is an invaluable tool for anyone who wants to master data transformation， and this book will equip you with the knowledge and skills to make the most of it。 The Definitive Guide to Power Query （M） will help you build a solid foundation in the Power Query M language。 As you progress through the chapters， you’ll learn how to use that knowledge to explore implement advanced concepts and data transformations before going on a no-compromise ‘deep dive’ into the Power Query language。 You’ll also get to grips with optimizing performance， handling errors， and implementing efficient data processing techniques。 As this is a hands-on guide， the practical examples in the chapters will help you gain the skills to apply Power Query to real-world problems and enhance your data analysis capabilities。 By the end of this book， you will be able to leverage all of Power Query’s remarkable capabilities for data transformation。 This book is for business analysts， business intelligence professionals， and power business users working with data who want to add Power Query mastery to their resume。 Basic knowledge of programming and Power BI is a prerequisite。