Richard KusleikaBooksExcel 2019 Bible101 Ready-To-Use Excel FormulasAccess 2013 BibleOffice 2013 BibleExcel 2016 Formulas (Mr. Spreadsheet's Bookshelf)Excel 2016 Power Programming with VBAAccess 2016 BibleExcel 2016 FormulasAccess 2019 BibleAuthor data: Open Library