Yves-Marie Laithier is a professor at the Sorbonne Law School of (Paris I) where he teaches civil law and directs the master’s in comparative law. He is the author of numerous publications on the law of obligations and has co-written with O. Deshayes and T. Genicon a book relating to the reform of contract law, the general regime and proof of obligations (2nd ed., LexisNexis, 2018).