This chapter introduces the purpose and methodology of the book. It aims to provide community workers with skills for building a new, just society through a participatory training method. This method is informed by five key influences: Paulo Freire's work on critical consciousness, human relations training, organizational development principles, social analysis, and Christian concepts of transformation. The goal is to promote coherence between the content covered and participatory methods used, in order to help liberate people from poverty and oppression and transform society.