The fourth edition has been fully updated to reflect developments in the caselaw and statutory reforms in the last decade. Dozens of new cases are cited. The 2018 amendments to the Canada Business Corporations Act are discussed, including the requirements for public corporations to report on the diversity of their boards of directors that are not yet in force. The chapters on securities law, corporate governance, and corporate social responsibility have been significantly expanded. As well, features to improve the utility of the book have been added, such as more comprehensive cross-referencing throughout the text.