This article is based on the theme of the 70th annual convention of the Association for Business Communication (ABC): past, present, and future. In traditional Chinese culture, 70 is a very significant number because it represents a crossroads and indicates that an organization has survived to old age but must now undertake a review to ensure its future existence. This leads me to the theme of my article, in which I examine the teaching of business communication within the theme of the conference: past (representing the establishment of business communication as a teaching area in the United States), present (a transitional period in which we are learning to communicate in a global and multidisciplinary environment), and future (perfecting communication techniques and reacting to new challenges and opportunities).In this article, I discuss the evolution of business communication teaching and the challenges we face in getting it right in the 21st century. In doing so, I show how the teaching of business communication has been characterized by stability (continually looking to find better and more appropriate ways to communicate) and change (adapting to the challenge of communicating in an expanding and increasingly complex, diversified, and fragmented global multidisciplinary communication environment). At present, we are going through a transition period in which we are adapting and learning how to communicate in this ever changing environment. Our challenge is to build on the fundamental principles and the foundation that were established in the past and develop new teaching methodologies, approaches, and techniques that will allow us to communicate more effectively and efficiently in the present and increasingly so in the future. My intention is to show how the teaching of business communication has changed and evolved over