Go to Microsoft Office – Training Portal look for the Special Offers section – you will find a special offer for an e-book. The book is the 202 pages Office 2010 First Look by Katherine Murray which overviews new features across the Office Suite, including some step by step walk throughs. It covers Word. Excel, PowerPoint and One Note, SharePoint and Access. It is available as in PDF or XPS formats.
You will need to create Windows Live ID and sign in. I’d recommend an explore of the Training Portal while you are there.