I. Popular academic books fascinate me; I like academic knowledge, and I thing it can be expressed interestingly to an average reader. But the more one dives into research - especially in economic theory - the less it seems people will care about it. (Pop quiz: what fraction of people could you impress by telling them about Rubinstein’s email game, and why is it zero?)
I’ve only read pop-economics, though, and I didn’t know about the concept of popular computer science until my friend introduced me to Algorithms to Live By, by Brian Christian and Tom Griffiths.