Book excerpt: The BRICS in the New International Legal Order on Investment: Reformers or Disruptors is written by international experts with BRICS backgrounds. The book investigates why and how the BRICS countries modernize their approach to the investment treaty regime. The chapters are organized by BRICS countries and discuss whether they can develop a common approach to investment treaties as well as what these countries will bring to the investment treaty regime in the future. The volume provides important perspectives on how the BRICS, an emerging power hub in international society, engage in the international legal order.