Given the importance of the early childhood period as a time when the foundation is laid for later language and literacy, it is important to determine what activities and experiences lead to positive language and literacy outcomes in early childhood. This Fact Sheet reviews fifteen experimentally-evaluated programs and intervention strategies that were primarily focused on improving early language and literacy skills. It is an overview of experimentally evaluated programs and intervention strategies that have been identified for Child Trends' database of random assignment, intent-to-treat studies of social interventions for children and youth--LINKS (Lifecourse Interventions to Nurture Kids Successfully). The interventions presented in this review focus on strategies to directly improve specific aspects of young children's language or literacy skills (e.g., vocabulary development, print knowledge, listening skills). A table summarizes literacy and language interventions that have been found to be effective, or not, in producing results for specific outcomes. It is important to note that some interventions may have been successful in producing growth in one area of development (e.g., expressive vocabulary development), but less effective in affecting change in other areas (e.g., phonological awareness). A Glossary of Terms is appended. (Contains 2 tables, 25 footnotes, and 11 endnotes.)