Roger Stone is a freelance QlikView consultant based in Oxfordshire, UK. He entered the computer industry in 1977 and has worked with a huge variety of programming languages and tools all over the world. Finally discovering QlikView in late 2009, he has worked on numerous successful QlikView implementations in a wide range of industries, from insurance to healthcare. In 2010, Roger founded One QV Ltd with coauthor Andrew Dove, and together they developed 1HR, a QlikView-based human resources application aimed at the National Health Service in the UK. 1HR has since been deployed to more than 25 NHS Trusts. He currently holds QlikView Designer, Developer, and Systems Administrator Certifications for QlikView 11. Roger enjoys travel, Belgian beer, and military history, all of which are combined in his frequent trips to Belgium.