On this edition of ST, we speak by phone with writer James Kaplan, whose essays and reviews have appeared in The New Yorker, The New York Times Magazine, Vanity Fair, Esquire, and elsewhere. The first volume of Kaplan's definitive biography of Frank Sinatra, "Frank: The Voice," appeared in 2010. Now comes the second half of that life, the widely acclaimed "Sinatra: The Chairman," which the author discusses with us today. As per Publishers Weekly: "The great singer-actor contains multitudes in this vast, engrossing biography of Frank Sinatra's mature years....