Alex Libby has a background in IT support. He has been involved in supporting end users for almost 20 years in a variety of different environments, and he currently works as a technical analyst, supporting a medium-sized SharePoint estate for an international parts distributor who is based in the UK. Although Alex gets to play with different technologies in his day job, his first true love has always been the open source movement, and, in particular, experimenting with CSS/CSS3, jQuery, and HTML5. To date, Alex has already written eight books based on jQuery, HTML5 video, and CSS for Packt Publishing and has reviewed several more. Mastering jQuery is Alex's ninth book for Packt Publishing.