Figure 5.14 - Texture tilling
If you want to increase your textures' size, use smaller values like "0.5"
that will cut in half the size of your textures.
Tip: To use textures with tilling, you should always look for seamless
texture images. Those textures won't show visible borders when placed
side by side.
5.4 PBR textures in Blender
For projects where you need maximum realism for materials, you must
use a special type of PBR material. The acronym means "Physically
Based Render" and identifies a material that has multiple textures. Each
texture in the material has a unique purpose of representing a feature of
the surface.