C.G. From SPACE: Blender Quick Tip: How to set up IK pole vectors without breaking the bind pose
How to Build FK, IK, Bendy Bone, and Spline IK Rigs in Blender - Lesterbanks
Blender 3D: Noob to Pro/Advanced Tutorials/Advanced Animation/Guided tour/Const/ik - Wikibooks, open books for an open world
Need help understanding IK bones and pole bones - Animation and Rigging - Blender Artists Community
Avoiding Bone poping in IK chains - BlenderNation
Inverse Kinematics controlling 3 bones. - Animation and Rigging - Blender Artists Community
Blender Rigging IK tutorial - YouTube
First time attempt at building a humanoid armature in Blender 2.8, with IK constraints. I followed Royal Skies LLC's You Tube tutorial, somehow IK applied for the left leg has offset, the
rigging - how to stretch ik bone in blender 2.8 - Blender Stack Exchange