Over the past decade, hundreds of studies have been published on employee voice and silence. In this review, I summarize that body of work, with an emphasis on the progress that has been made in our understanding of when and why employees choose to speak up or remain silent, as well as the individual and organizational implications of these choices. I identify underexplored issues, limitations in how voice has been conceptualized and studied, and promising avenues for future research. Although there has been notable progress in our knowledge of voice and silence, numerous key questions remain, and there are opportunities for the literature on voice to adopt a broader view of that construct. One of the objectives of this review is to motivate and guide research that will address those questions and explore that broader view.