In this chapter, we deconstruct dimensions of critical human resource development (CHRD) and, although presented separately, we suggest they are interrelated and weave together to form a holistic appreciation of the complexity of critical HRD. First, we review definitions of critical HRD to attempt to establish just what it might mean, as a concept. Second, we investigate when critical HRD emerged. Third, we identify where critical HRD has emerged, noting distinct geographical and disciplinary locations, with cultural and theoretical implications. Fourth, we examine why critical HRD has emerged and why it might be a critical time with wider global, organizational and national consequences. Fifth, we identify who might be interested in critical HRD and for what reasons. Sixth, we explore how critical HRD can be achieved, focusing on how we can adopt a more critical perspective to teaching, research, and practice.