Ten books for the dad who reads but hasn't been bucketed into "sports guy" or "history guy." Half novels that didn't get assigned in school, half nonfiction that goes down easy without going dumb. Shackleton in the ice, a quiet professor's whole life, the cattle drive to end them all, the cells that outlived Henrietta Lacks. Hand him any one of them and he won't say thanks just to be polite. More shelves coming.