Andrew Mallett has worked in the field of IT for more years than he cares to mention, well since 1986, and he has been working with Citrix technologies since Metaframe 1.8 in 1999. Not only does he possess Citrix skills and the relevant certification, he is able to teach Linux, Citrix, Novell, and Microsoft official courses, and supports many of these products.
Andrew currently works as a freelance instructor and author in the UK, and teaching Citrix and Linux throughout Europe. You can follow his exploits on Twitter (@theurbanpenguin) and review his video tutorials on his website located at http://www.theurbanpenguin.com.
If you prefer Facebook, then you have http://www.facebook.com/Theurbanpenguin. Andrew has previously authored the Citrix Access Gateway VPX 5.04 Essentials, Packt Publishing and has worked as a technical reviewer for the book Instant Citrix Security How-to, Packt Publishing.