Landscapes are maintained and changed through combinations of actions and decisions which in turn are based on what Hägerstrand has termed territorial competences. Today these competences are primarily linked to individual landowners and users; in modern rural landscapes these are first of all the farmers. Farmers’ landscape practices are to a large extent guided and framed by public policy interventions of various kinds, representing spatial competences in Hägerstrand’s terminology. These interventions are influenced by various kinds of expert knowledge together with common public perceptions and conventions. The aim of this chapter is to analyse the various roles of experts in guiding landscape practices, with a specific focus on the changing relationships between territorial and spatial competences. We present a conceptual framework for analysing the role of experts and expertise in relation to both public policy interventions, individual and collective landscape practices.