 Human geography. Human geography is the branch of geography that deals with the study of people and their communities, cultures, economies, and interactions with the environment by studying their relations with and across space and place. Human geography attends to human patterns of social interaction, as well as spatial level interdependencies, and how they influence or affect the Earth's environment. As an intellectual discipline, geography is divided into the subfields of physical geography and human geography, the latter concentrating upon the study of human activities, by the application of qualitative and quantitative research methods.