The Forgiveness project aims to study how forgiveness itself powerfully affects subsequent health and well-being, and seeks to promote forgiveness as a public health issue. Forgiveness, understood as replacing ill-will with good-will towards an offender, can powerfully change lives. Given the nearly universal experience of being wronged, it is important that a commitment to the good of the other be extended, even in difficult circumstances, if we are to move forward and bring about the good in society. This is not an ignoring or denying of the wrong, nor is it a denial of seeking a just outcome (which is in fact compatible with forgiveness). Rather it is a hope that, ultimately, the person who committed the wrong will turn to, and experience, the good. We aim to evaluate in randomized trials recently developed forgiveness workbook interventions so as to be able to promote forgiveness for individuals and communities.