Self-Development of People (SDOP): Sermons and Liturgy is a thematic collection of sermons and liturgical materials celebrating the ministry of the Presbyterian Comminttee on the Self-Development of People. It is intended, first of all, to provide pastors with materials to help them in their preparation for worship services emphasizing SDOP, especially on SDOP Sunday, celebrated annually during the Lenten season. This booklet also informs general reader’s.