Each family has their own unique combination of both conscious and unconscious priorities. The difference between a great book and a mediocre one is whether the message is strong enough to reinforce those priorities or, at times, conflict with them.
With time and energy in short supply, reading good books makes much more sense than slogging our way through so-so ones. So what is it that separates the exceptional from the mediocre? We think it boils down to two things.