The book's content is the following: Vol. I: TITLE I: INTRODUCTION. Chapter I- Concept of buying and selling. Chapter II- The purchase and sale contract between civil law, commercial law and consumer law. TITLE II: FORMATION OF THE CONTRACT. Chapter I- Conclusion, form and formalities of the purchase and sale. Chapter II- Formation of the contract for the purchase and sale of movable assets. Chapter III- Formation of the contract for the purchase and sale of real estate – I. Chapter IV- Formation of the contract for the purchase and sale of real estate – II.