It was at Columbia that Neustadt wrote the book Presidential Power[REF] (1960; a revised edition titled Presidential Power and the Modern Presidents: The Politics of Leadership appeared in 1990),[REF] in which he examined the decision-making process at the highest levels of government.
With his book appearing just before the election of John F. Kennedy, Neustadt soon found himself in demand by the President-elect, and began his advisory role with a 20-page memo suggesting things the President should and should not try to do at the beginning of his term.