Mastering Blender Topology : Understand This VITAL Mesh Pattern — Grant Abbitt (Gabbitt)
https://youtu.be/P-Z_TBH-Qkw 5:26

Blender for Filmmakers: Unlock Cinematic Secrets with Onur Erdurak — Grant Abbitt (Gabbitt)
https://youtu.be/EVBj7yH2dS4 52:19

Blender Rigging Basics: Understanding & Fixing BONE ROLL Easily — Grant Abbitt (Gabbitt)
https://youtu.be/lS-nAxG33vU 3:22