David Upton is a director of a specialized management consultancy company, based in London but working around the world. His clients include some of the world's largest companies. He is increasingly interested in web-enabling his work, and seeking to turn ideas into robust professional applications by the simplest and easiest route. He has so far written applications for two major companies in the UK. His other interests include simulation, on which he writes a weblog which takes up far too much of his time, and thinking. Jose Argudo Blanco is a web developer from Valencia, Spain. After finishing his studies he started working for a web design company. After working for six years for that company and some others, he decided to work as a freelance. Now, after some years have passed, he thinks it's the best decision he has ever takena decision that let him work with the tools he likes, such as CodeIgniter, Joomla!, CakePHP, JQuery, and other well-known open source technologies. For the past few months he has also reviewed some books for Packt Publishing, such as Magento 1.3 Theme Design, Magento: Beginner's Guide, Joomla! 1.5 SEO, Symfony 1.3 Web Application Development, and Joomla! with Flash. The one yet to be published is Magento Development with PHP.