Macmillan Cabinet Papers, 1957-1963 provides complete coverage of the Cabinet conclusions (minutes) (CAB 128) and memoranda (CAB 129) of Harold Macmillan’s government, plus selected minutes and memoranda of policy committees (CAB 134).

The Cabinet conclusions are taken by the secretary of the Cabinet or one of their assistants and consist of summaries of all discussions in Cabinet, together with a note of decisions reached. Cabinet memoranda consist of all papers circulated to members of the Cabinet and to other ministers for information or as a basis for discussion. These classes provide a distillation of the work of all the other departments of government, ranging in subject matter from agricultural policy and trade to nuclear policy and issues of international diplomacy.

This collection also includes 165 files from the Prime Minister's Private Office (PREM 11). These provide an important supplement to the Cabinet records and cover all aspects of policymaking.