Responses to survey, focus group, and interview questions advanced current knowledge regarding the purpose, history, and development of pre-K age 4 learning standards, comprehensiveness of standards documents, standards-related supports for teachers, and pre-K to kindergarten alignment. Systematic analysis of pre-K age 4 learning standards documents revealed extensive variation across titles, organization, terminology, and enriching materials, such as teacher strategies and child examples that assist teachers in implementing standards. A surprising finding is the positive view among early childhood leaders in focus groups and interviews toward establishing national pre-K age 4 learning standards. The report concludes with a brief discussion of implications of this study followed by recommendations to inform state and federal early childhood leaders, education-focused philanthropic foundations, and others in the field of early childhood education.