Early childhood education and care affects millions of young people, their parents, and ultimately society at large. Social workers are employed directly in early childhood education and care programs and also witness the results of inadequate early interventions in various practice settings. Yet social workers do little of the research related to this topic. Numerous issues relate to both social work and to thoughtful discussions of early childhood education and care, including the unequal use of high quality early education programs, which is ultimately a social justice issue. This article elucidates how social workers can and why they should contribute to practice, policy, and research related to early childhood education and care.