Many Excel experts believe that pivot tables are the single most powerful tool in Excel. According to Bill Jelen (a.k.a. Mr. Excel) "No other tool in Excel gives you the flexibility and analytical power of a pivot table". I agree. This article is a collection of important things you should know about pivot tables.
Many people have the idea that building a pivot table is complicated and time-consuming, but it's simply not true. Compared to the time it would take you to build an equivalent report manually, pivot tables are incredibly fast. If you have well-organized source data, you can create a pivot table less than a minute.