The inset faces command is well-known with 3D modelers, but did you know these extra shortcuts? Follow Blender Secrets on Youtube... | By Blender Secrets | Facebook
INSET + BEVEL made easy in Blender - YouTube
Extrude and inset — Blender for 3D Printing
8 Tips for Clean Topology in Blender (Updated for 2021) - CG Cookie | Learn Blender, Online Tutorials and Feedback