This set of position papers explains how young children learn to read and write in High/Scope’s infant-toddler, preschool, and early elementary programs. Papers for each developmental level (a) describe how children at that level acquire these closely related and complementary literacy skills; (b) list the strategies High/Scope-trained teachers and caregivers use, in partnership with parents, to support reading and writing development in their programs and at home; (c) cite scientific research proving that the High/Scope approach works; and (d) answer questions frequently asked by educators, families, and policymakers. This summary presents the literacy development principles and strategies common to all three papers and describes the research findings that allow us to state unequivocally: Children learn to read and write in High/Scope programs.