Part I Obligations arising from contracts: Formation of the contract -- Public promise -- Form of the contract -- Standard terms -- Content of the contract -- Abstract acknowledgement of debt -- Contract interpretation and simulation -- Incomplete contracts -- Revision of the contract (hardship) -- Mistake, fraud and duress -- Unfair exploitation (lesion) -- Agency -- Part II The effect of obligations, performance, non-performance, the effect on third parties: Performance of obligations -- The object of performance -- Performance of the debtor -- Place of performance -- Time of performance -- Proof of performance -- Default of creditor -- Natural obligations -- Non-performance of the obligation -- Default of the debtor -- Effects of the obligation on third parties -- Part III Estinguishment of obligations and limitation period: Extinguishment of obligations -- Limintation period -- Part IV Joint and several debtors and creditors, conditions, earnest and forfeit money, and penalty: Joint and several debtors -- Joint and several creditors -- Conditional contracts -- Earnest money and forfeit money -- Contractual penalty -- Part V Assignment of claims, assumption of debts, transfer of contracts and joining a party to an existing contract: Assignment of claims -- Assumption of obligations -- Transfer of contracts and joining a party to an existing contract.This book introduces readers to the main principles of Turkish contract law, and particularly analyzes the general provisions of the Turkish Code of Obligations. Moreover, in order to illuminate certain key subjects, it discusses selected provisions of the Turkish Civil Code, the Turkish Commercial Code and the Turkish Bankruptcy and Enforcement Law. Intended to provide a comprehensive and clear overview of Turkish contract law, the book seeks to avoid contentious arguments and explains the subjects with the help of simple examples.