With the upcoming release of Windows Server Core 2016, Server Core will become the default Installation Interface for Windows Server 2016 Is not selected otherwise.
To get started with Server Core you will find below all Server Core 2016 articles I published recently.
Server Core:
Install Windows Server Core 2016 Technical Preview 5 On Hyper-V
Promote Windows Server 2016 Core To A Domain Controller
Install VMware Tools Windows Server 2016 Core