This book traces the development of the Business & Human Rights (BHR) regime that has so far culminated with the United Nations Guiding Principles on Business and Human Rights. It first surveys the argumentation and negotiation strategies that led to agreement on key elements of the BHR regime despite a range conflicting interests across stakeholders from public, private and not-for-profit organisations. It then maps out pro-active regulatory strategies and public-private regulation for promoting responsible business conduct, offering insights for civil society, public regulators, business managers, academics and others. The book will assist engaged parties in structuring their arguments within negotiation processes with a view to enhancing their influence on change in business organisations in support of sustainability and new norms of conduct.