The Tusome Early Grade Reading Program involves a national effort in Kenya to scale up a proven model for improved results in early grade literacy. Based on positive findings during a rigorous impact evaluation of a pilot test of this intervention, the Government of Kenya (GOK) asked USAID/Kenya to assist with the nationwide rollout of an activity to improve reading skills and increase the capacity of educators and the GOK to deliver and administer early grade reading (EGR) programs modeled on the pilot activity’s success. Tusome, which means “Let’s Read” in Kiswahili, targeted 28,000 formal and nonformal public and low-cost private primary schools in the 47 counties in Kenya (nationwide). About 1,000 of these are informal schools that exist mostly in urban “slums,” while the vast majority of the remaining 27,000 schools are in rural areas. Roughly 5.4 million children who entered primary school between 2014 and 2017 are expected to benefit from this scaling-up initiative. Intermediate beneficiaries include: 1) approximately 60,000 class 1 and 2 teachers, 2) 28,000 primary school head teachers, 3) 1,052 Teacher Advisory Center (TAC) tutors, plus “coaches” for nonformal schools and 4) 300 senior education personnel. Tusome also assisted the GOK at the technical and policy levels to sustainably improve reading skills beyond the span of the activity.