Roland Bunch’s work with indigenous Mayan farmers in the highlands of Guatemala in the 1970s enabled the Campesino a Campesino (farmer-to-farmer) movement to sweep through Mexico, Central America and Cuba in the 1980s and 1990s. Cover crops were a central component of the movement’s success. In this personal letter, Roland shares his recent work with the successful farmer-to-farmer spread of cover crops in seven African countries.