Recently I purchased three original marketing photographs produced by Jonathan Cape's marketing team for the 1970 launch of the first edition of Bomber, Len Deighton's magnum opus about the experiences of the wartime bombing raids over German which is often regarded as on of his best novels (certainly, of his non-spy fiction books).
The novel is also, famously, the first modern novel written on a true IBM PC, which at the time took up much of the room in Deighton's office in his ground floor flat in London, as I wrote about a number of years ago.
Although it missed out on being shortlisted for the Booker Prize in 1970, Bomber was lauded by writer Anthony Burgess as one of the 99 best novels of the twentieth century in the English language.
Part of the reason for the particular success of Bomber (which was also turned into a Radio 4 play) is Deighton's attention to detail. As a writer it has often been acknowledged by readers and critics that Len Deighton's books are full of exquisitely research details, particularly when it comes to military materiel and historical occurrences. Some readers have found this propensity for technical minutiae off-putting, but many others - myself included - feel it adds a level of realism that grounds the story and reassures the reader that they story they're reading is as true to life as it can be.