This essay explains how the Supreme Court of Canada has interpreted and applied the Canadian Charter of Rights and Freedoms to the law of work. It is intended as an introduction to this complex legal field for an audience unfamiliar with the Charter. Beginning with an overview of the Charter review process, the paper then examines the Court’s application to work law of Section 2(d) freedom of association, Section 2(b) freedom of expression, and Section 15 equality rights. The paper is an updated version describing the law as of summer 2012.