What are directors' duties across various corporate forms, and how should directors protect themselves from the distinctive risks they may encounter? This article will tackle these subjects at a high level; for the 750-page version, see my Directors' Duties in Canada, 4th Edition, published by CCH in 2009. This article originally appeared in the September 2011 edition of Director Journal, a publication of the Institute of Corporate Directors (ICD). Permission has been granted by the ICD to use this article for non-commercial purposes including research, educational materials and online resources.