The book 'Intervention Model for Sustainable Household Food Security' is the culmination of a painstaking innovation in intervention theory, field and analytical framework to bridge the gap between programme intervention theory and practice. It explores popular theoretical intervention designs and determines the extent of application in food security intervention, and the impact on households. A rigorous ex-post evaluation method based on multiple intervention case studies is used to enhance validity of the inferences drawn. The synthesis of the research is an intervention model applicable to relevant intervention programmes.