Angel Kalaidzhiev is professor of civil and commercial law at Sofia University Faculty of Law. He has a doctoral degree in Juridical Sciences (Sofia University Faculty of Law, 2001). He is arbitrator at the International Centre for Settlement of Investment Disputes (World Bank Group) and deputy chairman of the Arbitration Court of the Bulgarian Chamber of Commerce and Industry. Over the last two decades Prof. Angel Kalaidzhiev has published many books in civil, commercial law and arbitration law. Some of his publications include the following titles: “Cheque in Bulgarian Law” (1992), “Suretyship” (1993), “Cashless Payment” (1999), “Reorganization of Commercial Companies” (2005), “Enterprise Rehabilitation” (2006), “Commercial Companies” (2014).