Augmented reality technology enables the creation of training that more closely resembles real-world environments without the cost and complexity of organizing large- scale training exercises in high-stakes domains that require recognition skills (e.g., military operations, emergency medicine). Augmented reality can be used to project virtual objects such as patients, medical equipment, colleagues, and terrain features onto any surface, transforming any space into a simulation center. Augmented reality can also be integrated into an existing simulation center. For example, a virtual patient can be mapped onto a physical manikin so learners can practice assessments skills on the highly tailorable virtual patient, and practice interventions on the physical manikin using the tools they use in their everyday work. This chapter sets the stage by describing how the author drew from their own experiences, reviewed scientific literature, and consulted with skilled instructors to articulate eleven design principles for creating augmented reality training.