How to Use This Book

This book is obviously not meant to be read cover to cover. Instead, it's a reference book that you can consult when you need help with the following situations:

• You're stuck while trying to do something.
• You need to do something that you've never done before.
• You have some time on your hands, and you're interested in learning something new about Excel.

The index is comprehensive, and each chapter typically focuses on a single broad topic. Don't be discouraged if some of the material is over your head. Most users get by just fine by using only a small subset of Excel's total capabilities. In fact, the 80/20 rule applies here: 80 percent of Excel users use only 20 percent of its features. However, knowing only 20 percent of Excel's features still gives you a lot of power at your fingertips.