Fields in Word 2010
Automatic update of the embedded and linked objects is extremely powerful feature of Microsoft Word, but it could be boring for a large document. Locking a link prevents the object from being updated by the original application file, such as an Excel spreadsheet file.
As you work on a document, you normally see the results of the field codes that you've inserted instead of the actual codes themselves. Because of this, these field results may be difficult to distinguish from normal text, so Word has added a feature called shading that helps you to locate such results.
You can easily include the total number of pages along with the current page number (E.g., Page 10 of 20).
In some cases you want to show in your Word document the number or amount in words. You can use macros, but Word proposes easy and simple way by using fields.
Either you do your scientific research work at school or college, or write an article to the reputable magazine you need to reference sources of your information. To simplify this hard work Word 2010 provides you automatic tools for inserting citations.