The Summer Electronic Benefit Transfer for Children (SEBTC) demonstration distributed a monthly benefit during the summer on Supplemental Nutrition Assistance Program (SNAP) or Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) EBT cards to children eligible for free or reduced-price school meals. The first two summers (2011 and 2012) tested a $60 benefit amount. Summer 2013 compared the impacts of a $30 benefit to a $60 benefit, and summer 2014 examined implementation strategies and benefit use patterns. This comprehensive report presents results from the analysis of pooled data from all summer demonstrations.