This early draft of NAV 2013 RDLC reporting guidelines was placed on the Microsoft Dynamics NAV Team Blog earlier in the year. As the original author notes, they’re essentially “a checklist at this point, which you can go through one by one. For example, it is a good practice to define the Page Width, Page Height, and margins in the Report Properties before starting to design your report.”http://libertygrove.com/wp-content/uploads/2012/03/microsoft-dynamics-nav-rdlc-reporting-guidelines.pdf
He also notes that not all checks necessarily apply to all report types.
To assist you in understanding the guidelines, a series of instructional videos was placed on YouTube. Here a few of those videos:
You can view the complete set of videos here: Dynamics NAV 2013 Draft RDLC Reporting Guidelines.