Holy Macro! Books has been providing top-quality books on Excel, Power Query, and Power BI since 2002. They have published over 100 titles by 30 authors, including numerous Microsoft MVPs.
Bill Jelen is the host of MrExcel.com and the author of 61 books about Microsoft Excel including Excel Gurus Gone Wild, Pivot Table Data Crunching, and Excel 2019 Inside Out. He has made over 80 guest appearances on TV's Call for Help with Leo Laporte and was voted guest of the year on the Computer America radio show. He writes the Excel column for Strategic Finance magazine. He has produced over 2200 episodes of his daily video podcast Learn Excel from MrExcel.