Dynamics GP includes a variety of reporting tools that you can use to easily get information out of your accounting and ERP system.
There is a standard report writer that produces all the basic reports and forms. This comes as part of the system and is fairly easy to customize if you want.
There is also an ad-hoc reporting tool that users really like. There are a number of standard report templates that can be easily changed to add fields and selection criteria to get directly to the data you want. You can even dump the results to Excel with one click.
This little video shows you an overview sample of possible reports: