Reader recommendation: The Passage of Power Monitor readers share their favorite book picks. By Mary Folsom, Kennebunk, Me. March 8, 2013 About video ads View Caption of It took three tries and several weeks, but I finally finished Passage of Power by Robert Caro, the fourth volume in the study of Lyndon Johnson. It was worth it and is as revealing as the other three. Can you guess which literary work goes with each final line? Take our quiz!