The See, Judge, Act or Review of Life methodology, initially articulated by Fr (later Cardinal) Joseph Cardijn in the early 1900s, has become widely accepted in the Catholic Church and in many other churches as an effective method of evangelisation. However, unfortunately, See, Judge, Act has frequently become simply a slogan lacking precise content or it has been used to describe approaches that do not take all the elements intended fully into account. To address this challenge in its own ranks, the International Young Christian Students (IYCS) International Team of 2003-2007 commissioned the production of this book to assist the training of its students and chaplains in this methodology as integral to its spirituality of critical reflection and action within the perspective of transforming their local and global realities. It is therefore hoped that this book will contribute to deepening the understanding of See, Judge, Act as a timeless spirituality enabling effective evangelisation or communication of the Good News proclaimed by Jesus Christ in order to bring God's justice and peace to our world.