Sinclair McKay has written books on subjects ranging from the codebreakers of Bletchley Park to the auteurs of the Hammer Horror films, from the evolution of rambling to the political manoeuvres behind the Battle of Britain; the linking thread being English social history.  His most recent books published in 2017 are a captivating history of a Victorian murder case, The Mile End Murder: the Case Conan Doyle Couldn't Solve (Aurum), and a book of tests, riddles, and puzzles called Bletchley Park Brainteasers (Headline).

Sinclair is a literary critic for the Telegraph and The Spectator and for three years was a judge of the Encore Prize, awarded annually for best second novel. He lives in the shadow of Canary Wharf, east London.