Earlier this year I did an event at the LSE called 'How Would a Robot Read a Novel'. A computer program called Alceste had 'read' The Kilburn Social Club and, based on various complicated algorithms, broken it down into its constituent parts. Alceste thought the book was (I can't remember the specifics, but this was the shape of its breakdown) 40% about relationships and friendships, 20@ about business shenanigans, 20% about football club things and 20% about trees.
I finished The Girl Who Kicked the Hornet's Nest yesterday. It was very gripping. If you plugged it into Alceste, I reckon it would come out as 15% about someone called Salander, 15% about someone called Blomkvist and 60% about a Palm Tungsten T10.