Wayne L. Winston is a professor of Decision Sciences at Indiana University's Kelley School of Business and has earned numerous MBA teaching awards. For 20+ years, he has taught clients at Fortune 500 companies how to use Excel to make smarter business decisions. Wayne and his business partner Jeff Sagarin developed the player-statistics tracking and rating system used by the Dallas Mavericks professional basketball team. He is also a two time Jeopardy! champion.
"The author clearly knows his way around Excel and the data analysis business. The level of expertise is high, and the sample workbooks contain some really good examples of how to really make Excel worth the software license. Again and again you'll find things that you thought you knew but realise you hadn't quite got hold of. The coverage of time series analysis and how to do with seasonality, for example, is way ahead of what most Excel books cover."