The Future of Families and Child Wellbeing Study (FFCWS) is the longest running contemporary birth cohort study in the US based on a national probability sample. The FFCWS provides free access for researchers to its public use data, which covers a wide range of topics, including education, employment, housing, relationships, parenting, health, income, and more for a sample of ~5000 families including a large number of Black, Hispanic, and low-income families. It also contains restricted use contract data on residential contexts, school contexts, and biological and health data. We welcome those who are interested in learning about using the FFCWS data for the first time, and current data users who would like a deeper dive into navigating our data, as well as those who are just curious to learn more about this study. This workshop will introduce researchers to 1) a brief overview of the history and data collection of the FFCWS including our ongoing field work at Year 27 ; 2) an overview of our latest contextual data files; 3) a guide to the file structure, contents, and data conventions used in FFCWS including tips and advice from experts in FFCWS data support; and 4) a tutorial on the contents and use of our metadata web interface. Our goals for this workshop are to provide a solid background for working with FFCWS data and to support participants as they begin variable exploration and selection relevant to their own research questions.