The book focuses on food security highlighting the role of indigenous knowledge and scientific research in addressing the plight of poor small-scale agricultural producers. Rapidly growing global population and global policies and management governing sustainability, hunger, food security and poverty alleviation are discussed. Additionally, impacts of probable climate change, research on land productivity and performance of dependable food crops i.e. cassava and pearl millet are discussed. Analyzed in great detail are roles of small sk, urban/peri-urban agriculture and advantages of climate-smart agriculture and participatory research in enhancing food security of the small-scale agricultural producers in Southern Africa.