This history of the National Security Council under presidents Kennedy and Johnson was written by the Executive Director of the NSC under both presidents, Bromley Smith. It traces not just the mechanics of the NSC during the period but also how it was used to tackle specific topics.
Bromley Smith was a long-time NSC staffer. He was appointed to the NSC Staff in 1953 by President Eisenhower and rose to become the NSC’s Executive Secretary in the Kennedy administration. He stayed in the position until his retirement in 1980.