The lecture aims to give participants a concise overview of the Canons of Professional Responsibility in relation to litigation. As an introduction, the lecture will provide a brief review of the basic duties of lawyers to the courts, to their clients, to the legal profession, and to society. The lecture will then focus on the proper/improper behavior of lawyers in court and/or during litigation, from the perspective of legal ethics. Practical application of the Canons will be discussed as well as actual cases that illustrate proper/improper behavior of lawyers in litigation. The lecture will conclude with a survey of recent jurisprudence that illustrate how the Canons apply and how it should be understood whenever lawyers are engaged in litigation.