Kasper de Jonge 
Absolute Guide to Dashboarding and Reporting with Power BI [PDF ebook] 

Written by a member of Microsoft’s Power BI team, this resource provides a practical step by step guide on creating a financial dashboard. The book covers in detail how to combine and shape the relevant data, build the dashboard in Power BI, providing layout and design tips and tricks, prepare the model to work with fiscal dates, and show values used in many financial reports, including year-to-date, variance-to-target, percentage-of-total, and running totals reports.