Bump maps and norm maps

I need help with my skins they look good but i want to take them to the next level anyone know any good tuts on making bump & norm maps?

There are many ways to do them. One is to make a grayscale heightmap and convert this map with any program or plug-in into a normal map.

Another way is to buy programs like zbursh or Autodesk’s mudbox to create normals.

I’d recommend you to google.