Amazon.com: Photorealistic Materials and Textures in Blender Cycles - Fourth Edition: Create impressive production-ready projects using one of the most powerful rendering engines: 9781805129639: Belec, Arijan: Books
ArtStation - General Blender Material Pack | Resources
Fundamentals of Blender Materials and Shading - CG Cookie
Fundamentals of Blender Materials and Shading - CG Cookie
ArtStation - General Blender Material Pack | Resources
Blender 2.8 Material Setup (Realistic Base Shader) - BlenderNation
Making Realistic PBR Materials - Part 2: Metal — Blender Guru
Realistic Materials Blender-Tutorial - Finished Projects - Blender Artists Community
Making Realistic PBR Materials - Part 2: Metal — Blender Guru
Cycles Material Series : Wood, Granite, Glass - BlenderNation