The book, "Delivery by Non-Governmental Organizations and Alleviation of Rural Poverty in Southwestern Nigeria" is written based on a research conducted to investigate the effects of microcredit and saving facilities through microfinance Non-Governmental Organizations (MNGOs) on poverty alleviation among smallholders in rural Southwestern Nigeria. The study was carried out among clients and non-clients of two MNGOs viz: COWAN and FADU in the area. Multistage random sampling was used to select 200 samples from each of clients and non-clients of MNGOs. Primary data obtained were analyzed using descriptive and inferential statistics. The analysis was unique in that it made extensive use of difference of two means and deviation measures among others to discuss similarities and differences in socioeconomic characteristics of the groups in comparison. The study provided a conceptual framework that explained how micrifinance provision by NGOs can move clients away from poverty line. It analyzed the incidence, dept and severity of poverty as well as the determinants of poverty, savings, mcrocredit repayment among clients and non-clients of NGOs.