In the light of the psychological research on expressive qualities, this chapter deals with the landscape in terms of design. In particular, the phenomenological-experimental approach excludes physicalist and subjectivist prejudices in the study of immediate experience and allows the experimental investigation of tertiary-expressive qualities. After introducing the phenomenological landscape philosophy by Georg Simmel, a forerunner of Gestalt Psychology, the tertiary-expressive qualities are defined as design tools. Subsequently, the communicative mode which uses signs is put in contrast with the communicative mode based on expressive qualities. In conclusion, the benefit of the second mode of communication is discussed in its innovating the landscape in a cross-cultural way, adapting to the contexts.