The book "Microsoft Power BI - A Complete Introduction (2020 Edition)" is a comprehensive guide to learning Microsoft Power BI, a business analytics service by Microsoft. The book covers the basics of Power BI, including data preparation, data modeling, visualization, and business intelligence.

Microsoft Power BI is a collection of software services, apps, and connectors that work together to turn unrelated sources of data into coherent, visually immersive, and interactive insights. Whether your data is a simple Excel spreadsheet or a collection of cloud-based and on-premises hybrid data warehouses, Power BI lets you connect, model, and visualize your data with ease.

The benefits of using Microsoft Power BI include:

Microsoft does not maintain separate "yearly editions" for download. Power BI Desktop is updated monthly. However, you can download older versions (including those from 2020) from Microsoft’s official archive.