This introductory text provides an overview of the debates about the changing nature and shape of work and employment, arguing that employment is essentially an unequal exchange. At the foundation of the book is an understanding of the concept of power and how power is diffused and transmitted within and across organisations. To this end the changing world of work cannot be divorced from several overlapping power dynamics that have resonance to wider societal debates: issues of labour market inclusion and exclusion or marginalisation, profit and wealth distribution, political influence and employment regulation, union representation and community solidarity and agency. Voice and influence therefore need to be contextualised within a much broader discussion regarding work and employment changes.