Derrin Kent describes himself as a cross between a trainer, a manager, a linguist, and a geek. Managing Director of TDM (http://tdm.info), Derrin has a Masters level teaching qualification from the University of Cambridge (DTEFLA) and is also a Linux-Certified professional (LPIC). A jack-of-all-trades in open source software, Derrin has extensive Moodle experience (already a reviewer of two Packt books on Moodle) and speaks both Spanish and English at home with his Peruvian wife and two bilingual children.
Richard Hand is a Mahara platform manager, module developer and theme/configuration designer for TDM (http://tdm.info), an official Mahara partner organization. Richard also supports and develops other Open Source Software platforms including Moodle, Drupal, and Joomla. He graduated with a first class honours degree in Computer Science from the University of Bristol in 2008 and won a national (UK) award for "Best Website Design" for one of his TDM Joomla! sites in 2009 (selected from 2,000+ competitor sites).