Category:PCB PCB Layout
The connections on a PCB should be identical to its corresponding circuit diagram, but while the circuit diagram is arranged to be readable, the PCB layout is arranged to be functional, so there is rarely any visible correlation.
I really like Eagle PCB from Autodesk.
It's free if you're a student (unlimited board size and layers) and otherwise has nice price scaling and a free option for two layer boards that makes it usable for normal people. I used to use Altium Designer but the price is too high (~10k USD) for personal projects.