The preschool system encompasses a variety of programs, students, outcomes, and goals. Therefore, capturing preschool data can be as difficult as it is vital. This webinar focused on how states can collect "P" data when a state does not have a "P" or when a state's "P" falls within many programs. Helene Stebbins of the Early Childhood Data Collaborative (ECDC) gave an overview of early childhood development systems and programs, Steve Barnett of the National Institute for Early Education Research (NIEER) shared some results from the NIEER Preschool Yearbook, and Michael Fahey from Good Beginnings Alliance in Hawaii detailed his state's efforts to establish systematic data collection for early childhood workforce data. The information presented in this webinar can help to guide states as they develop preschool data systems, which can then be integrated with K-12, postsecondary, and workforce data. (author abstract)