David H. Ringstrom
David H. Ringstrom is a CPA and owner of Accounting Advisors, Inc., an Atlanta-based spreadsheet consulting firm that he started in 1991. David speaks at conferences and presents dozens of webinars annually on Excel and other topics. He has written numerous articles on spreadsheets, some of which have been published internationally. He has served as the technical editor for other 30 books on accounting software, and is the Tech Editor-at-Large for Accounting WEB and Going Concern. David offers Excel training and consulting services nationwide.