In A Theory for International Commercial Contract Law, Bruno Barreto de A. Teixeira proposes a contemporary legal and theoretical framework for international commercial contracts, designed to mitigate the effects of legal pluralism whilst protecting economic efficiency and legal certainty.The book examines the coordinative legal system applicable to international commercial contracts, comprising several legal sources of different natures. This regime is centred on two pillars: party autonomy and internationality. By prioritizing the international nature of agreements over domestic idiosyncrasies, the book offers a systematic method to reduce transaction costs, resolve legal antinomies, and foster a more inclusive trade environment.