I turn data into actionable insights. I can help you move decisively through your most knotty or slippery problem, whether it has too much data, too little data, too many unknowns or too many constraints. I’m an instructor and consultant in data science, decision analysis, Excel for analysts and decision makers, statistics for Six Sigma, systems engineering and more. I’m the author of the book "Simple Spreadsheets for Hard Decisions," which teaches leaders to use the interactive features of Excel to explore ever-changing questions. I’ve taught these powerful techniques to technical managers at major corporations and government agencies through short courses at major universities. Now, after 20 years, I’m bringing these simple but strong tools to a general audience through the Udemy class series, “Excel for Decision Makers.” The first is now available, “Insights from Data using Excel.” I love doing mathematics research. I have a PhD in mathematics with several recent research papers in peer-reviewed journals and a graduate-level text, “Abelian Groups: Structures and Classifications” (with Peter Loth, de Gruyter, 2019). My podcast, "The Art of Mathematics" brings the beauty of math to a general audience.Before founding Jacoby Consulting, I had 28 years of experience as a systems engineer specializing in the critical early stages of system development. The issues I analyzed and simulated included protecting Europe from missile attack, limiting drugs smuggled into the country, leveraging digital data to improve highway transportation and more.Specialties: Data science, decision analysis, systems engineering, systems-of-systems, assessment of needs, concept development, mission analysis, concept effectiveness, system simulation, system trade studies, Microsoft Excel, writing, briefing, training, motivational speaking, intelligent transportation systems, defense, mathematics research in abelian group theory and logic.