Abstract
Michael Frank Goodchild and David M. Mark are both considered eminent geographers who are presently teaching at American universities. Their contribution and passion to the field of geography is tremendous and has left a lot of the human strata in awe. Although, they share a particular interest in Geographic Information Systems, they have both specialized in specific fields of study. In this assignment we will delve into the intricacies of their careers and we will further focus in a precise manner on some of their academic papers. This academic research will help us examine their investment and subsequently their contribution to the research in GIS. Besides, having a passion for geography, these renowned personalities have other hobbies just like any common man. For example, David M. Mark is bird-lover (in technical terms he is an ornithologist). He had also set the goal of taking pictures of the 59 places in the USA where at least three states would come together and collide. Furthermore, he has been recognized and awarded the ?Éclat' award for being the notorious Research Scientist in GIS. Mark acquired a B.A. in Geography from the Simon Fraser University in 1970 and an M.A. in Geography from the University of British Columbia in 1974. He successfully received his Ph.D. in Geography from Simon Fraser University (Burnaby, Canada) in 1977. Mark has been working as a Professor at the University of Buffalo (State University of New York) since 1987, after being an assistant and an associate professor for 6 years at the same university .One is free to visit the website covering Mark's history from his personal, career and professional life and his achievements which is ?http://www.geog.buffalo.edu/~dmark/cv/degrees.html.'
