Microsoft Excel is an incredibly powerful and complicated piece of software. Even though I use Excel daily for a myriad of purposes, I'm still constantly learning new features and tricks.
O'Rielly's Windows Dev Center recently published a helpful article about Using Pivot Tables in Excel. The article is an excerpt from Excel: The Missing Manual ![[0596006640]](http://www.mikeyp.com/css/external.gif)
, which, judging by the quality of the article, I must now purchase. 
