Corporations play a central role in modern economies. Certain beliefs about corporations and corporate law are widely held and relied upon by business experts, the financial press, and economists who study the firm. Unfortunately, some of these widely-held beliefs are mistaken. This has led to numerous common errors in the way corporate law concepts are understood and applied. The authors of this Summary are experts versed in a variety of national legal systems, including those of the U.S. and U.K. as well as the E.U. We provide this simple Summary of certain fundamentals of corporate law, applicable in almost all jurisdictions, in an effort to help prevent analytical errors which can have severe and damaging effects on corporations and corporate governance.