Thirty years ago Richard Neustadt published "Presidential Power", which became a widely studied book on the theory and practice of presidential leadership. Presidents themselves read it and assign it to their staff for study, as did the intructors of hundreds of thousands of students of government. Now Richard Neustadt re-examines the theory of presidential power by testing it against events and decisions in the administrations of the later modern presidents who followed FDR, Truman and Eisenhower. To the original study of presidential power, Neustadt has added a series of chapters appraising the presidential styles and skills of John F. Kennedy, Lyndon Johnson, Richard Nixon, Jimmy Carter, and Ronald Reagan in the light of his guiding belief that the President must consider the effect a decision will have on his prospects for the successful exercise of presidential power in the future.