Lecture
This lecture introduces the concepts of thematic mapping and graphic semiology, focusing on the components and functions of maps, visual variables, thematic attributes, classification, and map design elements. It also covers map aesthetics, including harmony, visual balance, and composition, as well as the role of map design in enhancing understanding. The lecture explores the context of American counties in 1990, displaying unemployment rates through a thematic map. It discusses the population and economic situation in the United States during the 1990s, highlighting the impact of economic policies on wages and employment. The lecture also delves into the use of QGIS software for cartographic design and map production.