THE ARTICLE 9 SECURITY INTEREST AND ITS ATTACHMENT: The scope of Article 9 -- Leases of goods and Article 9 -- Attachment : the security agreement -- Attachment : further criteria -- PERFECTION OF THE INTEREST: Introduction to perfection and classification of collateral -- Perfection by filing : when and what to file -- Perfection by filing : where to file and how to file -- Perfection by possession -- Automatic perfection : the purchase-money security interest in consumer goods -- Automatic perfection : other instances -- Perfection on investment property and deposit accounts -- Changes in the situation : when, where, and what to refile -- PRIORITIES: Introduction to priority and the basic priority rules -- Priority and the PMSI -- Fixtures -- Sales and other transfers of collateral -- Proceeds -- Chattel paper and account financing -- Priorities in investment property and deposit accounts -- DEFAULT AND ENFORCEMENT: The event of default and the process of repossession -- The foreclosure sale -- Strict foreclosure and the right of redemption