In the last few decades, the workplace has been increasingly recognised as a legitimate environment for learning new skills and knowledge, which in turn enables workers to participate more effectively in ever-changing work environments. Within the workplace, there is the potential for continuous learning to occur not only through formal learning initiatives that are associated with training, but also through informal learning opportunities that are embedded within everyday work activities. This paper surveys the growing body of literature on informal learning, makes some critical observations about the importance of informal learning, and explains the various ways that informal learning can occur in the workplace.