Ahhh…The joy of holding your first beautiful green printed circuit board. A feeling every electronics guru understands. Eagle Cad is a fantastic free PCB design program. The learning curve is steep, but you’ll learn quickly with these fantastic tutorials.
Learn the basics of the user interface and button control.
Check out this outstanding, detailed tutorial about anything you’d possibly need to know.
This last tutorial is a bit dated, but you’ll still learn plenty from it too.
If you want to make larger boards, you’ll have to pay for a license. Otherwise, for anything under 8×10cm, you can just use the free version.
Learn to render your Eagle schematics in 3D.
Eagle Cad Tutorials: Make your own PCBs – [Link]