This document summarizes a study on smallholder agriculture in East Africa. It investigates trends, constraints, and opportunities for smallholder farmers in Kenya, Ethiopia, Uganda, and Tanzania. Smallholder farmers account for the majority of agricultural production and employment in these countries but have faced low productivity due to lack of access to markets, credit, and technology. The study aims to assess smallholder performance and challenges, highlight conditions to revitalize the sector, and guide development support. It combines literature review with case studies on the four countries.