The ‘Theory of Three Landscapes’ is a derivative of Karl Popper’s ‘Theory of Three Worlds’. Here, ‘Landscape 3’ refers to the socially shared conceptions (patterns of interpretation, categorization, and evaluation), ‘Landscape 2’ refers to their personal individual actualization, and ‘Landscape 1’ those tangible arrangements of the physical space that are being referred to as ‘landscape’. Landscape is constructed in three modes, ‘Mode A’ represents the native normal landscape of ‘home and youth’, ‘Mode B’ represents the commonly held understanding of landscape, and ‘Mode C’ represents the landscape perspectives of those possessing ‘expert special knowledge’. The Theory of Three Landscapes serves to convey the differentiation of landscape and its creation while facilitating the assignment of theories and methods for the exploration of landscape.