Mark Dexter is a Joomla! Development Coordinator, Joomla! Bug Squad Coordinator. He has extensive experience with producing clear, step-by-step instructions for software-related tasks. He has been working with Joomla! for 2.5 years and is a leader on the project. Mark started writing software in the 1970s on punch cards and, for 28 years, co-owned and ran a company that develops software for construction companies. During this time, he did everything from design and development to support, training, and documentation. After retiring he became the webmaster for a small non-profit organization and discovered Joomla. He made the mistake of pressing the Help button and discovered that most of the help documentation hadn't been written yet. So he volunteered to write documentation and has continued to learn about Joomla and try to contribute to the project. In the Joomla! project, Mark is currently a Bug Squad Coordinator, a Development Coordinator, and the Administrator for the Joomla! Student Outreach Program (JSOP). He has been a moderator on the forums, a member of the Documentation working group, and the Administrator for the 2009 Google Summer of Code program. He also has written four extensions. Mark is especially interested in the area of automated testing using PHPUnit and Selenium. Mark lives in Seattle, WA.