This is impressive! William Kisaalita draws from the rich African story telling traditions and makes complicated concepts accessible, no matter what the readers background is. Readers will feel like they are in his field class, with all the sights and sounds. Reading the book and putting the lessons in practice will drastically reduce the time to the readers development-related destination. Dr Salibo SoméFounder and Executive Director, Africa Sustainable Development Council, Ouagadougou, Burkina FasoA long overdue book and an excellent guide and light of best practices for developing technologies for smallholder farmers. The authors scholarly observations from over two decades of successful innovations in sub-Saharan Africa is a premier of Development Engineering. Professor Gajendra SinghForeign Fellow, National Academy of Agricultural Sciences (India); Vice-President of Academic Affairs Emeritus (Thailand); Full Member of the Club of BolognaA refreshing and incisive portrayal of the challenges of developing and deploying interventions in low-resource settings, such as sub-Saharan Africa. Development Engineering equips you with simple but powerful ways to triumph over these challenges.K.C. Das, PhD, PE, Georgia Athletic Association Professor, University of Georgia; Jefferson Science Fellow (2019-20), Senior Science Advisor, USAID