Human capital resources are key for organizations to gain a competitive advantage. Learning based on formal training and development programs, informal learning, and knowledge sharing influences the development of human capital resources. This article provides a selective review of research on learning that occurs in many different forms and at the individual, team, and organizational levels. It is organized around five themes-thinking differently about learning, reconsidering the form and design of learning, facilitating learning in the workplace, expanding the scope of learning outcomes, and improving methodology in learning research. These themes provide a framework for understanding how learning can contribute to the development of human capital resources and organizations' competitive advantage. For each theme, relevant research is reviewed, and limitations and future research directions are provided.