This note, intended to accompany the short booklet An Illustrated Book of Bad Arguments, discusses the logical framework behind argumentation and presents the basic logical rules necessary to reach sound conclusions. Throughout, it refers to the philosophical foundations of logical reasoning and attempts to address these concepts in the framework of management. By the end, diligent students should be able to identify the necessary structure and components of a sound argument?as well as the fatal attraction of unsound arguments?and be able to apply these ideas to create long-term value as leaders of firms and organizations.