In case you missed Ian’s announcement, the Microsoft Dynamics GP 2016 Cookbook is now available. Pick one up at Amazon or Packt. Heck, pick up two, they tend to walk into other people’s office and not come back.
Microsoft Dynamics GP 2016 Cookbook Now Available
Microsoft & the GP EcosystemGP 2016
Archived post from 2016. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.