I completed these two tutorials. https://www.youtube.com/watch?v=dSfIERQUm4I&feature=youtu.be https://www.youtube.com/watch?v=rQEa931APwU&feature=youtu.be I created a few more materials using nodes that I learned about.
Tile
Tile Graph
Tile 2
Tile 2 Graph
Tile 3
Tile 3 Graph
Concrete
Concrete Graph
Concrete 2
Concrete 2 Graph
Concrete 3
Concrete 3 Graph