This article describes how an experienced instructional designer thinks about and uses learning theories to inform instructional design decisions. It uses a vision metaphor to provide a simple heuristic framework for identifying the nature of instructional problems and relating different types of problems to useful theoretical perspectives, methods of instructional analysis, and assessment strategies. Finally, it provides a synopsis of major learning theory perspectives and situations that could be addressed by applying models and strategies representing the different theoretical perspectives. (Contains 4 figures and 1 table.)