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David H. Ringstrom

David H. Ringstrom, CPA, is an author and nationally recognized instructor who teaches scores of webinars each year. His Excel courses are based on 25 years of consulting and teaching experience. David’s mantra is “Either you work Excel, or it works you,” so he focuses on what he sees users don’t, but should, know about Microsoft Excel. His goal is to empower you to use Excel more effectively. To learn more about David, you can view his LinkedIn profile and follow him on Facebook or Twitter (@excelwriter).