This annual report presents an overview of Saint Louis Science Center audience data gathered through a variety of evaluation studies conducted during 2015. This report includes information on the Science Center's general public audience demographics and visitation patterns, gives an overview of visitors' comments about their Science Center experience, summarizes major trends observed in the Science Center's tool for tracking educational programs, and presents highlights from a Membership study, a formative evaluation of a new Makerspace exhibition, and program evaluation of a workshop for the