Hardly anyone who works with electronics, whether professional or enthusiast, is content to leave their design at the breadboard stage. Particularly with SMD components or relatively complex circuits, this is anyhow difficult, and prototyping boards are not the ideal solution. There is no getting around a real PCB in such cases. For that you need suitable software, and to choose the right software, you need information.PCBs are essential nowadays, even for very small production runs or one-offs for the lab in a company of any size or on the workbench of a hobbyist, not only because they look nice but also because the stability and reliability of electronic circuits are strongly dependent on how well the circuits are built.