PCB design is not only a science but also an art, as every PCB designer knows. However, the art of design is predicated by the science to a certain extent and in order to do a good job a designer has to know certain parametric effects of PCBs. A recent whitepaper released by Signal Processing Group Inc., offers a brief treatment of the first order electrical and thermal parameters for PCB design that can be useful in PCB design, both for understanding, as well as robustness of design. The paper can be accessed via the “Engineer’s corner” menu item in the SPG website located at http://www.signalpro.biz.