During the development of the first permanent exhibition to be installed at COSI, a science center in Columbus, Ohio, a number of front-end, developmental, and remedial evaluations were implemented over the course of 3 years. As the embedded evaluator for this project, I was considered part of the design team and was present at almost all the project team meetings and facilitated all of the evaluations except for the summative evaluation, in which an outside evaluator was hired to perform the evaluation. This collection of reports contains a front-end evaluation that explored what COSI guests