Head Start is a federal program that has provided comprehensive early childhood development services to low-income children since 1965. The program seeks to promote school readiness by enhancing the social and cognitive development of children through the provision of educational, health, nutritional, social, and other services. Head Start is administered by the U.S. Department of Health and Human Services (HHS). Federal Head Start funds are provided directly to local grantees rather than through states. Programs are locally designed and are administered by a network of roughly 1,600 public and private non-profit and for-profit agencies. This book discusses the background and funding of the program, and examines the role it plays in school readiness goals.