Ian Fleming explains how to write a thriller (2019)
I vastly prefer George Smiley to James Bond when it comes to spy-vs-spy fiction (though perhaps Mad Magazine's take on that genre is the best of all).  Bond stories consist mostly of one-dimensional heroes and villains and their empty-headed sidekicks, predictably shoehorned into some Disney-style morality play, all designed to improve the public image of the CIA and the MI5/6 (both of whom were very upset about Le Carre's take on the Cold War, and basically seem to have promoted Fleming as an antidote).Usually, when people these days want an unambigous good-guys-vs-bad-guys storyline, they have to go back to WWII and the almost-universally despised Nazi regime.  This is because there's a lot of uncertainly about who the 'good guys' were in the Cold War, or even if there were any.  The Berlin airlift looks good for the West, but the effort to perpetuate French colonialism in Vietnam, not so much.  There are at least a dozen similar examples on both sides, from eastern Europe (USSR not looking so good) to Africa and South/Central America (lots of bad behavior by the 'pro-democracy West').John Le Carre famously portrayed the conflict as two giant gear wheels grinding against each other and destroying the lives of people unfortunate enough to get caught in the middle, and his doubtful self-questioning protagonist, George Smiley, though obviously devoted to the West, carries that theme well. Le Carre's "A Perfect Spy" and "The Russia House" are also some of his best works, with similar themes and central characters.