The Wisconsin Evaluation Collaborative (WEC) has conducted a review of relevant literature on and existing efforts to promote youth participation in decision making, particularly in the context of education. The purpose of this review is to support capacity building efforts within the Wisconsin Department of Public Instruction (WI DPI) and the School of Education at UW-Madison (UW SOE) towards family engagement and youth participatory decision making in K12 schools. This review resulted in two 'knowledge bases': (1) a review of the research, evidence, and theoretical work about youth participatory decision making; and (2) a review of existing efforts towards youth participatory decision-making. The "literature review" knowledge base lists research papers from within the last 15 years. It includes examples of youth participatory decision making that have been studied and also frameworks defining and operationalizing different forms of youth engagement efforts. The "review of existing efforts" knowledge base describes youth participatory decision making programs that have education as a main focus. Entries are organized into geographic categories: international; US: national and regional; state efforts outside of Wisconsin; Wisconsin efforts at WI DPI; WI efforts outside WI DPI; and local efforts, including at WI school districts.