Our intention for the site is plain and simple: provide electrodynamic problems with solutions. We hope that the information may help one or the other to understand photonics. We believe that the best way to achieve this is to solve problems and have their solutions at hand. We also take the chance to supply additional information in the background section for most of the problems. This might be an explanation of a related research topic or more in-depth information. We hope you enjoy your path to understand photonics!