This chapter reviews the literature on the identification of landholder typologies that can be used to assist the design and delivery of extension programs. Australian researchers have developed typologies of landholders based on a variety of criteria. The methods used have differed according to the theories used to guide the research and the 'clients' or 'sponsors' of the research. The landholder types they describe, however, have a number of similarities. In this chapter, the rationale for developing landholder typologies is first discussed before reviewing the various approaches that have been used by Australian researchers and comparing their findings
