This is a free eBook from Microsoft which is having 258 pages and covers an overview of the Microsoft Office 2010 suites and information about how to get started. Thos document is available in .doc, .pdf and .xps format.

The content includes

Comparison of office 2010 editions

User interface

What is New,

What is Removed

Migration Considerations

Strategic Improvements

Changes in Word, Excel, Power point, Project 2010, Publisher 2010, share point Designer 2010, Visio 2010 etc

System requirment

Assessment Tools

Get it from Microsoft