For the first time, a monograph thoroughly analyses the controversial and sensitive topic of secretaries to arbitral tribunals. Tribunal secretaries support arbitrators at all stages of the arbitration and provide valuable assistance; yet, thus far, they have remained largely in the shadows. This book provides vital discussion on how tribunal secretaries should be appointed, what specific tasks they may be endowed with, and what the consequences of an impermissible use are. Comprehensive analysis of case law, arbitration legislation, institutional rules and guidelines, and supporting literature guides the reader towards a profound understanding of the benefits and pitfalls surrounding the tribunal secretary's position.