MSDW also has a excerpt from Victoria Yudin’s new implementation book. The excerpt looks at Identifying reporting needs in a Microsoft Dynamics GP 2013 implementation
Identifying reporting needs in a Microsoft Dynamics GP 2013 implementation | MSDynamicsWorld.com
Off-Topic & MiscellaneousGP 2013
Archived post from 2014. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.