The workforce challenges facing the child care and early education (CCEE) sector are well-known, but effectively addressing these challenges requires a better understanding of the issues. The Building and Sustaining the Child Care and Early Education Workforce (BASE) project aims to increase knowledge and understanding about the CCEE workforce by documenting factors that drive turnover and by building evidence on current initiatives to recruit, advance, and retain a stable and qualified CCEE workforce. A key gap identified by the BASE project is the lack of data sources that capture longitudinal data on the same educators over time, which is critical for answering questions about how teachers enter, stay in, and exit the field. This brief uses one promising source of longitudinal workforce data to address these questions of workforce dynamics--quarterly wage data reported to the Illinois Department of Employment Security (IDES) to support the Unemployment Insurance (UI) program (UI wage data). Specifically, this brief looks at which industries new CCEE workers come from, how long they stay in the field, and which industries they enter after leaving the field. The brief also examines the employment duration of first child care jobs and first spells of employment in the CCEE industry. [This report was created in partnership with the Illinois Department of Employment Security.]