“Dare to Lead” by Brené Brown (“Gift of Imperfection”) says that leadership is not about knowing the answers but asking the right questions.  “Heirs of the Founders” by H. W.Brands details  the fierce rivalry between unionists Clay and Webster vs  states-righter Calhoun, in a debate that is ongoing.  “The White Darkness” by David Grann recounts a solo walk across the awesomeness of Antarctica.