The term ‘employee voice’ refers to the ways and means through which employees can attempt to have a say and influence organizational issues that affect their work and the interests of managers and owners. The concept is distinct, but related to and often overlapping with issues such as participation, involvement and, more recently, engagement. This Handbook provides an up-to-date survey of the current research into employee voice, sets this research into context and sets a marker for future research in the area.