Data-based decision making refers to collecting, analyzing, and reporting data to drive school improvement. This can apply to any level of the school from individual students to the entire system. When applied to the field of secondary transition, it refers to using data to drive decisions to improve the in-school and post-school success of secondary students, as well as the systems that support those students. The purpose of this annotated bibliography is to provide a reference and brief synopsis of articles published on the topic of data-based decision making. The articles are divided into three categories based on the focus of the article. The first category, systems level, includes articles that focus on data-based decision making for an educational system (e.g., school, district). The second category, student level, focuses on data-based decision making for students. The third category, National Technical Assistance Center on Transition (NTACT), describes the resources that can be found on the NTACT website (http://transitionta.org/dataanalysis).