This light version includes the most used tools to create documents of different kinds. It includes the famous Excel, Word and PowerPoint.
It also includes OneNote, an information manager that allows you to manage notes and docs in an efficient way. Tools like Access, Accounting Express, Publisher and Outlook are only available in the professional version.
Finally, if you are not satisfied with Microsoft Office Home and Student 2010 when the trial period expires or you don't want to spend any money,you can use the totally free office suite called OpenOffice 3.
You'll need a Serial number, you can get it for free in the Official Site.
60-day trial version