PostBooks is a full-featured, fully-integrated Accounting, ERP, and CRM system, the core of the award winning xTuple ERP Suite. Built with the open source PostgreSQL database, and the open source Qt framework for C++, it provides the ultimate in power and flexibility for a range of businesses and industries of any size.xTuple PostBooks includes the following: * Accounting (general ledger, accounts receivable and payable, bank reconciliation, financial reporting) * Sales (quotes, order entry, sales reporting, shipping) * CRM (universal address book, incident management, opportunity management, to-do lists, project management) * Purchasing (purchase orders, receiving, vendor reporting) * Product Definition (items, infinite-level bills of material) * Inventory and Distribution (multiple locations, other advanced warehouse features) * Light Manufacturing (work orders, strong support for make-to-order) * OpenRPT open source report writer