Educator and Consultant
Mark Talbert has been using Excel aggressively since version 1.0, and writing Excel macros both before and after the introduction of the VBA language. He has introduced several college-level courses over 15+ years on Excel modeling and VBA programming, which have together produced thousands of graduates who now work across a wide range of industries. His most frequent email subject line from former students is "Thank God I took your course!" followed closely by "I really wish I would have taken your course!"