Henning Sanden on Twitter: "I replaced the default cube in Blender with the Companion Cube. I will take care of it and love it. https://t.co/eqMwX1YGh3" / Twitter
Default Cube : r/blender
Introduction to Computer Graphics, Section B.1 -- Blender Basics
The Blender user interface | Blender Quick Start Guide
Settings - Blender Launcher
Getting started - Blender 3D Printing by Example [Book]