Best selling author and former soldier David Black now lives and works in Hertfordshire UK. For years, he lived an extraordinary double life as a London taxi driver and reserve SAS Senior Instructor and Troop Sergeant. He has recently launched a new career as a novelist. His first book - 'PLAYING FOR ENGLAND' - takes a first-hand look at exactly what the SAS require in a man, and what standard they demand, to pass their rigorous and exhausting selection process. With a 90%+ failure rate...you'll have to see for yourself what's entailed! David Black served with the Territorial SAS, based in Chelsea, London for 11 years while working hard as a black taxi driver in the capital. His double life was the inspiration for his first novel in the new SAS Shadow Squadron series - The Great Satan, and it's recently released sequel - Dark Empire. The Great Satan is based on the very real concept that Iraq did have a secret weapon of mass destruction, which disappeared during Saddam's overthrow in 2003. The weapon - a small but viable atomic bomb - goes missing in Iraq before eventually turning up in London and threatening the very existence of the city. The hero of the book, Pat Farrell is, like David Black, a part-time SAS soldier and part-time London taxi driver. David Black said: "I left the regular army after three years because I wanted a normal life. But while I was doing The Knowledge I quickly became bored with a mundane civilian life, so I joined the TA SAS for some new action and adventure. I loved it as a part-time soldier and part-time London taxi driver. It was an existence filled with incredible adventure and perfect inspiration for my Shadow Squadron Series." As well, David has recently written the first of a new series of historical fiction adventure stories - 'SIEGE OF FAITH' - set on Malta in 1565, against the savage backdrop of the Great Ottoman Invasion.