Salesforce allows you to create reports using wizards. And though this offers a lot of flexibility in the terms of creating customized reports, it wasn’t very intuitive. You had to follow a series of steps before you could actually see the output.
Salesforce has now come up with a new feature called “Report Builder” based on “WYSIWYG” (What you see is what you get). Currently available as “Developer Preview” (available only in developer edition), report builder is expected to be available in Winter 2010 for production use.
With report builder you will actually be working on the output itself. Report builder is going to fetch the first 50 rows based on the filters that your specify and then you can use drag and drop and other features to customize it as per your requirement. View the following YouTube video to find out how exactly it works.
If you are not a able to view the video, watch it directly on YouTube by clicking here.