This paper provides information on the latest research and evaluation of workforce development programming for youth. While the focus is on work done in developing countries, results from a handful of particularly relevant studies in the United States are also included. First, the paper presents a framework for guiding the interpretation of the impact that workforce development has on youth outcomes. An analysis of the trends in the field that increase positive youth employment outcomes is also included. Next, the paper provides the latest evidence of what works in achieving these outcomes, along with a discussion of gap areas in need of further investigation.