Diffuse translucency way too difficult to set up in Cycles - #14 by lsscpp - Cycles Development - Developer Forum
Sheen Properties in Principled BSDF Node | Blender Advanced training
Principled Volume — Blender Manual
Principled BSDF Shader Settings for Steel in Blender - Jigasu.Com
How to Use Blender's new ULTIMATE Shader: Principled — Blender Guru
Here's a free Principled BSDF Shader guide to help Blender users, an extract from the free PDF guide and YouTube tutorial below, hope you find it useful :D : r/learnblender
Blender 3D tip — Realistic Specular value in Principled shader - BlenderNation
Principled BSDF — Blender Manual
Basic Principled BSDF – Blender Knowledgebase
How to use a Bump Map AND Normal Map with the Principled BSDF? : r/blender
Principled Volume — Blender Manual
Specular BSDF — Blender Manual
Blender 2.8 How to use PBR textures with principled bsdf Cycles/Eevee - YouTube
How to use PBR Textures in Blender | cgbookcase.com
Principled BSDF is based on PxrDisney - PxrDisney is legacy - Blender and CG Discussions - Blender Artists Community