A British thriller author whose works are published by Hodder & Stoughton. He has written for television shows such as London's Burning, The Knock, and the BBC's Murder in Mind series. He is one of the top selling Amazon Kindle authors, the second bestselling UK author worldwide on Kindle in 2011. Leather's novels frequently include themes of crime, imprisonment, military service, and terrorism. Settings are typically London and the Far East. Leather writes different series in slightly different genres. The main character of one series, Dan 'Spider' Shepherd, is a former Special Air Service soldier who becomes an undercover cop. Another series, "Jack Nightingale", is about a former police negotiator who becomes a private investigator this supernatural detective series is also published by Hodder & Stoughton and includes the books Nightfall, Midnight, Nightmare, Nightshade and Lastnight.
Leather has written screenplays for London's Burning, The Knock, and the BBC's Murder in Mind series. Two of his novels, The Stretch and The Bombmaker, were screened for made for TV movies and filmed for Sky Television. The Stretch starred Leslie Grantham and Anita Dobson, two popular soap opera stars from the U.K.