As one illustration of Hud3's point, I've found when arriving in a new port & country that the CIA Fact Book helps me better understand the economy that's keeping things afloat, how the govt. works (and doesn't), what the health
risks are, and lots more. Usually, these kinds of info are far more relevant to the health
& fulfillment of the crew than sailing directions, given we all spend much more time anchored/berthed than we do at sea (not that I haven't used the digital sailing directions, as well).