This article is an excerpt from Excel 2007 Charts by John Walkenbach. A.k.a. Mr. Spreadsheet, John is arguably the foremost authority on Excel. His forty-plus books include Excel 2007 Power Programming with VBA, Excel 2007 Formulas, and the bestselling Excel 2007 Bible, all published by Wiley. He has also written hundreds of articles and created the award-winning Power Utility Pack. Visit Wiley.com to learn more about this book.
A chart can present a less-than-truthful picture in a number of ways. This article presents examples that demonstrate various ways in which charts can mislead the viewer and possibly lead to incorrect conclusions.