Rob specialised in forensic fraud investigations at a global accounting firm for thirteen years. He began writing in 2009 following a promise to his wife, an avid reader, that he could pen an 'unputdownable' thriller. Since then, Rob has sold over a million copies of his critically acclaimed and bestselling thrillers in the Enemy, James Ryker and Sleeper series. His work has received widespread critical acclaim, with many reviewers and readers likening Rob's work to authors at the very top of the genre, including Lee Child and Vince Flynn. Originally from the North East of England, Rob has lived and worked in a number of fast-paced cities, including New York, and is now settled in the West Midlands with his wife and young sons.