PCB design in EAGLE is a two-step process. First you design your schematic, then you lay out a PCB based on that schematic. EAGLE’s board and schematic editors work hand-in-hand. A well-designed schematic is critical to the overall PCB design process. It will help you catch errors before the board is fabricated, and it’ll help you debug a board when something doesn’t work.
Get your Free Eagle Software here: non commercial express licence https://cadsoft.io/pricing/
Use this link to learn Eagle schematic drawing and making the board layout. https://learn.sparkfun.com/tutorials/using-eagle-schematic
Instructables has a good outline for using the Eagle software also. http://www.instructables.com/id/Draw-Electronic-Schematics-with-CadSoft-EAGLE/