This document provides an overview of content management systems (CMS) and the open source e-commerce platform Magento. It discusses what a CMS is and examples like Magento's CMS which allows managing rich content and pages. Magento is introduced as an open source e-commerce application using the Zend framework and EAV database model. The document outlines Magento's features, system requirements, and provides a step-by-step guide to installing Magento.