This document outlines the various records and files essential for acquisitions (ACQ) work. It describes 8 key records: 1) Vendor records contain vendor contact and terms information. 2) Order requests record bibliographic details and approvals. 3) Purchase orders record orders placed with vendors. 4) Financial records track fund transactions and budgets. 5) Correspondence files store communications with vendors. 6) Serial check-in records track periodical subscriptions and issues received. 7) Volume holdings contain item receipt information. 8) Invoices record payments made to vendors with item and pricing details. The document provides an overview of the purpose, content, and format of each essential acquisitions record type.