Wezel et al. (2007) have observed that the word agroecology is variously used to refer to a science, a movement and a practice. In a book written by, and largely for, La Via Campesina (LVC), Machín Sosa et al. (2010:16, translated from the Spanish) similarly note that “for the social movements that make up La Via Campesina, the concept of agroecology goes much farther that just ecological-productive principles. In addition to these, LVC incorporates social, cultural and political principles and goals into its concept of agroecology.”