This training manual was developed under the multi-country Capacities for Inter-Religious Community Action (CIRCA) project funded by GHR Foundation. It aims to prepare community leaders for successful interreligious collaboration on practical initiatives to promote peace and nurture positive relations, particularly in Muslim and Christian contexts. The manual is composed of four units: Faith-based Teachings on Peace and Justice, Conflict Sensitivity for Interreligious Action, Partnership for Interreligious Action, and Transformative Leadership and Change Management. It promotes constructive interaction through a joint process of thought, consultation, and preparation for action. Various approaches to adult learning, such as individual and group discussion and reflection, are used as a strategy for building skills for effective and sustainable change. The manual takes seriously the beliefs and sacred writings of Islam and Christianity, and the personal convictions and spirituality of participants, with all their human potential.