Mark Proctor is a senior finance professional, qualified accountant and blogger who has been applying spreadsheet based solutions to solve real world problems for the last 20 years. 

He has built a variety of Excel based reporting, predictive, decision making and automation tools for achieving process efficiency in multinational companies in the media, food, retail and manufacturing sectors.  

He is also the owner of Excel Off The Grid (https://exceloffthegrid.com), which focuses on teaching intermediate and advanced Excel techniques.