This chapter discusses secured transactions under Article 9 of the Uniform Commercial Code. It defines secured and unsecured debt, outlines the scope of Article 9, and describes how a security interest is created and perfected. Key concepts covered include floating liens, priority issues between secured parties and other creditors, the rights and duties of secured parties and debtors upon default, and remedies available to debtors. The chapter aims to help readers understand secured transactions and how to properly create, perfect, and enforce security interests.