This book is aimed at anyone who wants to gain an understanding of the popular open-source content management systems TYPO3 V.4 and Joomla! 1.5. In addition to covering the fundamentals such as Web 2.0, content management, and open source, the key features of the systems are compared, and their respective areas of application are derived. Topics such as template creation, accessibility, security, and search engine optimization are also addressed. The second part of the book deals with the complete creation of a commercial website using the CMS Joomla! 1.5, with a thorough justification for choosing Joomla. It also clarifies the scenarios in which TYPO3 would have been the preferred choice. The reader is introduced to the extensive topic of content management systems while gaining a practical perspective on the professional realization of CMS projects.