If you liked Iron Man, the movie, you'll like the novel Femmes Fatales by Robert Greenberger. It occupies a similar territory with its narrative and inside the head of Stark Industries and Tony Stark himself.
Iron Man was, as a comic book character, never terribly exciting to me. But the life given by Robert Downey Jr's portrayal is staggering. A man inside a suit is, after all, something any of us can begin to imagine.
Stark - with his magnetised chest-plate has an Achilles heart and an Achilles heel - his eye for the ladies. They don't work well together. This novel is all about his vulnerability to that and it weaves in a modern terrorist narrative that is very much the rage given world events. It works well, as does the shared billing for Nick Fury and S.H.I.E.L.D. This organisation is credibly drawn given its under-staffing and bureaucracy.
What does not work so well is the HYDRA organisation. Although the details are handled well, the motivation, structure and management all seem unbelievable. But it is fiction, and it's not putting in for the Nobel Prize for Literature, so we can let that ride this time.
Greenberger keeps it skimming along well, balancing action and character development, combining the ingredients that made the movie work so well and not insulting your intelligence. It is a promising start if there are more of these to come.